Fix more compiler warnings, typos and other minor issues (#260)

Many of these changes are minor typo fixes. The other changes
(which are mostly compiler warning fixes) are:

NEWS:
- The --globcasedetect shell option works on older Linux kernels
  when used with FAT32/VFAT file systems, so remove the note about
  it only working with 5.2+ kernels.

src/cmd/ksh93/COMPATIBILITY:
- Update the documentation on function scoping with an addition
  from ksh93v- (this does apply to ksh93u+).

src/cmd/ksh93/edit/emacs.c:
- Check for '_AST_ksh_release', not 'AST_ksh_release'.

src/cmd/INIT/mamake.c,
src/cmd/INIT/ratz.c,
src/cmd/INIT/release.c,
src/cmd/builtin/pty.c:
- Add more uses of UNREACHABLE() and noreturn, this time for the
  build system and pty.

src/cmd/builtin/pty.c,
src/cmd/builtin/array.c,
src/cmd/ksh93/sh/name.c,
src/cmd/ksh93/sh/nvtype.c,
src/cmd/ksh93/sh/suid_exec.c:
- Fix six -Wunused-variable warnings (the name.c nv_arrayptr()
  fixes are also in ksh93v-).
- Remove the unused 'tableval' function to fix a -Wunused-function
  warning.

src/cmd/ksh93/sh/lex.c:
- Remove unused 'SHOPT_DOS' code, which isn't enabled anywhere.
  https://github.com/att/ast/issues/272#issuecomment-354363112

src/cmd/ksh93/bltins/misc.c,
src/cmd/ksh93/bltins/trap.c,
src/cmd/ksh93/bltins/typeset.c:
- Add dictionary generator function declarations for former
  aliases that are now builtins (re: 1fbbeaa1, ef1621c1, 3ba4900e).
- For consistency with the rest of the codebase, use '(void)'
  instead of '()' for print_cpu_times.

src/cmd/ksh93/sh/init.c,
src/lib/libast/path/pathshell.c:
- Move the otherwise unused EXE macro to pathshell() and only
  search for 'sh.exe' on Windows.

src/cmd/ksh93/sh/xec.c,
src/lib/libast/include/ast.h:
- Add an empty definition for inline when compiling with C89.
  This allows the timeval_to_double() function to be inlined.

src/cmd/ksh93/include/shlex.h:
- Remove the unused 'PIPESYM2' macro.

src/cmd/ksh93/tests/pty.sh:
- Add '# err_exit #' to count the regression test added in
  commit 113a9392.

src/lib/libast/disc/sfdcdio.c:
- Move diordwr, dioread, diowrite and dioexcept behind
  '#ifdef F_DIOINFO' to fix one -Wunused-variable warning and
  multiple -Wunused-function warnings (sfdcdio() only uses these
  functions when F_DIOINFO is defined).

src/lib/libast/string/fmtdev.c:
- Fix two -Wimplicit-function-declaration warnings on Linux by
  including sys/sysmacros.h in fmtdev().

NEWS

@@ -72,7 +72,7 @@ Any uppercase BUG_* names are modernish shell bug IDs.
 
 - A new --globcasedetect shell option is added to ksh on OSs where we can check
   for a case-insensitive file system (currently macOS, Windows/Cygwin, Linux
-  5.2+, and QNX 7.0+). When this option is turned on, file name generation
+  and QNX 7.0+). When this option is turned on, file name generation
   (globbing), as well as file name tab completion on interactive shells,
   automatically become case-insensitive on file systems where the difference
   between upper- and lowercase is ignored for file names. This is transparently

README.md

@@ -31,7 +31,7 @@ To see what's left to fix, see [the issue tracker](https://github.com/ksh93/ksh/
 7. Code style varies somewhat in this historic code base.
    Your changes should match the style of the code surrounding it.
    Indent with tabs, assuming an 8-space tab width.
-   Opening braces are on a line of their own, at the same identation level
+   Opening braces are on a line of their own, at the same indentation level
    as their corresponding closing brace.
    Comments always use `/*`...`*/`.
 8. Good judgment may override this policy.

docs/ksh/faq.html

@@ -771,7 +771,7 @@ or indexed, use ${!var[@]}.
 <DT>How do I do global substitutions on the contents of shell variables?<DD>
 
 Use // instead of / for global substitution, ${var//aa/bb} will
-expand to the value of  with each "aa" replace by "bb".
+expand to the value of var with each "aa" replaced by "bb".
 
 <DT>How can I convert %XX values to ascii?<DD>
 

lib/package/INIT.README

@@ -450,7 +450,7 @@ All recorded changes follow.
 	 regress.sh: INPUT and OUTPUT handle -f for printf instead of print
 04-06-11 package.sh: make sure $INSTALLROOT/bin is in front of $PATH
 	 package.sh: skip nmake if older than 2000-10-31
-04-05-20 package.sh: fix arg vs. package parse with - or '' to disambuguate
+04-05-20 package.sh: fix arg vs. package parse with - or '' to disambiguate
 04-05-11 package.sh: package verbose update lists closure for package setup
 	 package.sh: add src/lib/libardir to nmake proto bootstrap
 	 regress.sh: probe for rm -u vs. chmod -R u+rwx
@@ -518,7 +518,7 @@ All recorded changes follow.
 03-09-23 ratz.c: fix tar header number parse bug that skipped to next number
 	 regress.sh: rm cleanup now handles files matching -*
 03-09-11 iffe.sh: add unnamed { ... } blocks
-	 regress.sh: add COPY from to, like MOVE but comprison still done
+	 regress.sh: add COPY from to, like MOVE but comparison still done
 	 regress.sh: rm -rfu to handle test dirs w/o u+rwx
 03-08-14 Makefile: add hello.c to the manifest
 03-08-11 package.sh: fix `html binary' generation
@@ -617,7 +617,7 @@ All recorded changes follow.
 	 make.probe: add CC.LD.STRIP for link time a.out strip
 	 package.sh: fix package_use vs. PACKAGE_USE check
 02-10-24 WWW.mk: fix bug that required a :WWWBIN: assertion to post
-02-10-23 mamake.c: fix unuinitialized time in make()
+02-10-23 mamake.c: fix uninitialized time in make()
 	 ratz.c: fix meter buffer overflow
 02-10-20 package.sh: fix lib/probe/C/make/probe update test
 02-10-18 probe.win32: update for mingw
@@ -699,7 +699,7 @@ All recorded changes follow.
 	 package.sh: add check for { cc ar nm yacc/bison } before make
 	 ratz.c: fix "rb" vs. "r" macro tests
 	 iffe.sh: add nxt, similar to lcl but defines _nxt_foo for #include
-	 iffe.sh,package.sh: remove vaibale from sccs,cvs ident strings -- duh
+	 iffe.sh,package.sh: remove variable from sccs,cvs ident strings -- duh
 02-01-24 C+probe: check CC.DYNAMIC to handle cc that accept but ignore -B*
 	 iffe.sh: handle 'mem struct.a.b'
 02-01-22 iffe.sh: cache (internal) `foo vs. struct foo' test results
@@ -950,7 +950,7 @@ All recorded changes follow.
 98-05-01 regress: fix bug sometimes didn't list last test
 98-04-01 hostinfo: add cc path arg
 	 hostinfo: now works with /bin/sh
-	 Makefile: strengthed -lm probe
+	 Makefile: strengthen -lm probe
 98-01-23 Makefile: check for -ldl -lm
 	 C.probe: handle gcc -v -E phony include dirs
 	 iffe: fix lcl by dropping sort -u -- we need the real first

lib/package/INIT.html

@@ -412,7 +412,7 @@ All recorded changes follow.
 	 regress.sh: INPUT and OUTPUT handle -f for printf instead of print
 04-06-11 package.sh: make sure $INSTALLROOT/bin is in front of $PATH
 	 package.sh: skip nmake if older than 2000-10-31
-04-05-20 package.sh: fix arg vs. package parse with - or '' to disambuguate
+04-05-20 package.sh: fix arg vs. package parse with - or '' to disambiguate
 04-05-11 package.sh: package verbose update lists closure for package setup
 	 package.sh: add src/lib/libardir to nmake proto bootstrap
 	 regress.sh: probe for rm -u vs. chmod -R u+rwx
@@ -480,7 +480,7 @@ All recorded changes follow.
 03-09-23 ratz.c: fix tar header number parse bug that skipped to next number
 	 regress.sh: rm cleanup now handles files matching -*
 03-09-11 iffe.sh: add unnamed { ... } blocks
-	 regress.sh: add COPY from to, like MOVE but comprison still done
+	 regress.sh: add COPY from to, like MOVE but comparison still done
 	 regress.sh: rm -rfu to handle test dirs w/o u+rwx
 03-08-14 Makefile: add hello.c to the manifest
 03-08-11 package.sh: fix `html binary' generation
@@ -579,7 +579,7 @@ All recorded changes follow.
 	 make.probe: add CC.LD.STRIP for link time a.out strip
 	 package.sh: fix package_use vs. PACKAGE_USE check
 02-10-24 WWW.mk: fix bug that required a :WWWBIN: assertion to post
-02-10-23 mamake.c: fix unuinitialized time in make()
+02-10-23 mamake.c: fix uninitialized time in make()
 	 ratz.c: fix meter buffer overflow
 02-10-20 package.sh: fix lib/probe/C/make/probe update test
 02-10-18 probe.win32: update for mingw
@@ -661,7 +661,7 @@ All recorded changes follow.
 	 package.sh: add check for { cc ar nm yacc/bison } before make
 	 ratz.c: fix "rb" vs. "r" macro tests
 	 iffe.sh: add nxt, similar to lcl but defines _nxt_foo for #include
-	 iffe.sh,package.sh: remove vaibale from sccs,cvs ident strings -- duh
+	 iffe.sh,package.sh: remove variable from sccs,cvs ident strings -- duh
 02-01-24 C+probe: check CC.DYNAMIC to handle cc that accept but ignore -B*
 	 iffe.sh: handle 'mem struct.a.b'
 02-01-22 iffe.sh: cache (internal) `foo vs. struct foo' test results
@@ -912,7 +912,7 @@ All recorded changes follow.
 98-05-01 regress: fix bug sometimes didn't list last test
 98-04-01 hostinfo: add cc path arg
 	 hostinfo: now works with /bin/sh
-	 Makefile: strengthed -lm probe
+	 Makefile: strengthen -lm probe
 98-01-23 Makefile: check for -ldl -lm
 	 C.probe: handle gcc -v -E phony include dirs
 	 iffe: fix lcl by dropping sort -u -- we need the real first

lib/package/ast-ksh.pkg

@@ -20,17 +20,17 @@ ast-ksh :PACKAGE: ksh93 libast libcmd libcoshell libsum libdll
 		these symlinks
 			/bin/ksh.exe => ksh93.exe
 			/usr/share/man/man1/ksh93.1 => ksh.1
-		are created.  This allows alternative ksh impelementations,
+		are created.  This allows alternative ksh implementations,
 		e.g., /bin/pdksh.exe, to be selected by changing the ksh.exe
 		and ksh.1 symbolic links.  In addition, ksh and ksh93 paths are
 		added to /etc/shells if not already present.
 		$()
 		Each builtin or special command accepts the --man and --html
-		options to list the man page on the standard error. The --???
+		options to show the man page on the standard error. The --???
 		option describes the self documenting options available to all
 		builtin and special commands.
 		$()
-		The stanadlone ksh is statically linked with the ast libcmd
+		The standlone ksh is statically linked with the ast libcmd
 		library which provides several builtin versions of /bin
 		commands. "builtin | grep /opt/ast/bin" lists the libcmd
 		builtins on the standard output. /opt/ast/bin/FOO accesses
@@ -55,12 +55,12 @@ ast-ksh :PACKAGE: ksh93 libast libcmd libcoshell libsum libdll
 		variables to convert. PATH is handled by cygwin so it is not
 		converted by the ast library.
 		$()
-		The astksh cygwin source package provides a bootstrap build
+		The ast-ksh cygwin source package provides a bootstrap build
 		environment that is not suited for an edit/build/debug cycle.
 		If you want to explore and modify the source then you should
 		install the (non-cygwinized) ast-base package which includes
 		AT&T nmake. With ast-base you will also be able to regenerate
-		the astksh cygwin source and binary packages.
+		the ast-ksh cygwin source and binary packages.
 		$()
 		For more information on ksh and other AT&T ast tools see
 		   http://www.research.att.com/sw/download/

src/cmd/INIT/RELEASE

@@ -423,7 +423,7 @@
 03-09-23 ratz.c: fix tar header number parse bug that skipped to next number
 	 regress.sh: rm cleanup now handles files matching -*
 03-09-11 iffe.sh: add unnamed { ... } blocks
-	 regress.sh: add COPY from to, like MOVE but comprison still done
+	 regress.sh: add COPY from to, like MOVE but comparison still done
 	 regress.sh: rm -rfu to handle test dirs w/o u+rwx
 03-08-14 Makefile: add hello.c to the manifest
 03-08-11 package.sh: fix `html binary' generation
@@ -522,7 +522,7 @@
 	 make.probe: add CC.LD.STRIP for link time a.out strip
 	 package.sh: fix package_use vs. PACKAGE_USE check
 02-10-24 WWW.mk: fix bug that required a :WWWBIN: assertion to post
-02-10-23 mamake.c: fix unuinitialized time in make()
+02-10-23 mamake.c: fix uninitialized time in make()
 	 ratz.c: fix meter buffer overflow
 02-10-20 package.sh: fix lib/probe/C/make/probe update test
 02-10-18 probe.win32: update for mingw
@@ -604,7 +604,7 @@
 	 package.sh: add check for { cc ar nm yacc/bison } before make
 	 ratz.c: fix "rb" vs. "r" macro tests
 	 iffe.sh: add nxt, similar to lcl but defines _nxt_foo for #include
-	 iffe.sh,package.sh: remove vaibale from sccs,cvs ident strings -- duh
+	 iffe.sh,package.sh: remove variable from sccs,cvs ident strings -- duh
 02-01-24 C+probe: check CC.DYNAMIC to handle cc that accept but ignore -B*
 	 iffe.sh: handle 'mem struct.a.b'
 02-01-22 iffe.sh: cache (internal) `foo vs. struct foo' test results
@@ -855,7 +855,7 @@
 98-05-01 regress: fix bug sometimes didn't list last test
 98-04-01 hostinfo: add cc path arg
 	 hostinfo: now works with /bin/sh
-	 Makefile: strengthed -lm probe
+	 Makefile: strengthen -lm probe
 98-01-23 Makefile: check for -ldl -lm
 	 C.probe: handle gcc -v -E phony include dirs
 	 iffe: fix lcl by dropping sort -u -- we need the real first

src/cmd/INIT/mamake.c

@@ -2157,8 +2157,8 @@ main(int argc, char** argv)
 			search(state.vars, "-strip-symbols", "1");
 			continue;
 		case '?':
-			error(ERROR_USAGE|4, "%s", opt_info.arg);
+			error(ERROR_usage(2), "%s", opt_info.arg);
-			continue;
+			UNREACHABLE();
 		case ':':
 			error(2, "%s", opt_info.arg);
 			continue;
@@ -2166,7 +2166,10 @@ main(int argc, char** argv)
 		break;
 	}
 	if (error_info.errors)
-		error(ERROR_USAGE|4, "%s", optusage(NiL));
+	{
+		error(ERROR_usage(2), "%s", optusage(NiL));
+		UNREACHABLE();
+	}
 	argv += opt_info.index;
 #else
 	while ((s = *++argv) && *s == '-')

src/cmd/INIT/ratz.c

@@ -4813,8 +4813,8 @@ char**	argv;
 			sfprintf(sfstdout, "%s\n", id + 10);
 			return 0;
 		case '?':
-			error(ERROR_USAGE|4, "%s", opt_info.arg);
+			error(ERROR_usage(2), "%s", opt_info.arg);
-			continue;
+			UNREACHABLE();
 		case ':':
 			error(2, "%s", opt_info.arg);
 			continue;
@@ -4822,7 +4822,10 @@ char**	argv;
 		break;
 	}
 	if (error_info.errors)
-		error(ERROR_USAGE|4, "%s", optusage(NiL));
+	{
+		error(ERROR_usage(2), "%s", optusage(NiL));
+		UNREACHABLE();
+	}
 	argv += opt_info.index;
 #else
 	while ((s = *++argv) && *s == '-' && *(s + 1))

src/cmd/INIT/release.c

@@ -238,8 +238,8 @@ main(int argc, char** argv)
 			sfprintf(sfstdout, "%s\n", id + 10);
 			return 0;
 		case '?':
-			error(ERROR_USAGE|4, "%s", opt_info.arg);
+			error(ERROR_usage(2), "%s", opt_info.arg);
-			continue;
+			UNREACHABLE();
 		case ':':
 			error(2, "%s", opt_info.arg);
 			continue;
@@ -247,7 +247,10 @@ main(int argc, char** argv)
 		break;
 	}
 	if (error_info.errors)
-		error(ERROR_USAGE|4, "%s", optusage(NiL));
+	{
+		error(ERROR_usage(2), "%s", optusage(NiL));
+		UNREACHABLE();
+	}
 	argv += opt_info.index;
 #else
 	while ((s = *++argv) && *s == '-' && *(s + 1))

src/cmd/builtin/pty.c

@@ -125,9 +125,10 @@ static const char usage[] =
 #define CMIN		1
 #endif
 
-static void outofmemory(void)
+static noreturn void outofmemory(void)
 {
 	error(ERROR_SYSTEM|ERROR_PANIC, "out of memory");
+	UNREACHABLE();
 }
 
 #if !_lib_openpty && !_lib__getpty && !defined(_pty_clone)
@@ -221,7 +222,6 @@ static int
 mkpty(int* master, int* minion)
 {
 	struct termios	tty;
-	struct termios	tst;
 	struct termios*	ttyp;
 #ifdef TIOCGWINSZ
 	struct winsize	win;
@@ -316,6 +316,7 @@ mkpty(int* master, int* minion)
 		return -1;
 #endif
 #ifdef I_PUSH
+	struct termios	tst;
 	if (tcgetattr(*minion, &tst) < 0 && (ioctl(*minion, I_PUSH, "ptem") < 0 || ioctl(*minion, I_PUSH, "ldterm") < 0))
 	{
 		close(*minion);
@@ -1057,17 +1058,26 @@ b_pty(int argc, char** argv, Shbltin_t* context)
 			break;
 		case '?':
 			error(ERROR_usage(2), "%s", opt_info.arg);
-			break;
+			UNREACHABLE();
 		}
 		break;
 	}
 	argv += opt_info.index;
 	if (!argv[0])
+	{
 		error(ERROR_exit(1), "command must be specified");
+		UNREACHABLE();
+	}
 	if (mkpty(&master, &minion) < 0)
+	{
 		error(ERROR_system(1), "unable to create pty");
+		UNREACHABLE();
+	}
 	if (!(mp = sfnew(NiL, 0, SF_UNBOUND, master, SF_READ|SF_WRITE)))
+	{
 		error(ERROR_system(1), "cannot open master stream");
+		UNREACHABLE();
+	}
 	if (stty)
 	{
 		n = 2;
@@ -1095,9 +1105,15 @@ b_pty(int argc, char** argv, Shbltin_t* context)
 	if (!log)
 		lp = 0;
 	else if (!(lp = sfopen(NiL, log, "w")))
+	{
 		error(ERROR_system(1), "%s: cannot write", log);
+		UNREACHABLE();
+	}
 	if (!(proc = runcmd(argv, minion, session)))
+	{
 		error(ERROR_system(1), "unable run %s", argv[0]);
+		UNREACHABLE();
+	}
 	close(minion);
 	if (messages)
 	{
@@ -1109,7 +1125,10 @@ b_pty(int argc, char** argv, Shbltin_t* context)
 		else if ((fd = open(messages, O_CREAT|O_WRONLY, MODE_666)) >= 0)
 			drop = 0;
 		else
+		{
 			error(ERROR_system(1), "%s: cannot redirect messages", messages);
+			UNREACHABLE();
+		}
 		close(2);
 		dup(fd);
 		if (drop)
@@ -1118,6 +1137,9 @@ b_pty(int argc, char** argv, Shbltin_t* context)
 	minion = (*fun)(mp, lp, delay, timeout);
 	master = procclose(proc);
 	if (lp && sfclose(lp))
+	{
 		error(ERROR_system(1), "%s: write error", log);
+		UNREACHABLE();
+	}
 	return minion ? minion : master;
 }

src/cmd/ksh93/COMPATIBILITY

@@ -128,8 +128,10 @@ omitted features that are completely upward compatible.
 1.	Functions, defined with name() with ksh-93 are compatible with
 	the POSIX standard, not with ksh-88.  No local variables are
 	permitted, and there is no separate scope.  Functions defined
-	with the function name syntax, maintain compatibility.
+	with the function name syntax have local variables as in ksh-88,
-	This also affects function traces.
+	but are statically scoped as in C so that a function does not
+	automatically have access to local variables of the caller.
+	This change also affects function traces.
 
 2.	! is now a reserved word.  As a result, any command by that
 	name will no longer work with ksh-93.

src/cmd/ksh93/DESIGN

@@ -46,7 +46,7 @@ Directory layout:
 Include directory:
 	1.	argnod.h contains the type definitions for command
 		nodes, io nodes, argument nodes, and for positional
-		parameters.a  It defines the prototypes for
+		parameters.  It defines the prototypes for
 		all the positional parameters functions.
 	2.	builtins.h contains prototypes for builtins as well
 		as symbolic constants that refer to the name-pairs

src/cmd/ksh93/RELEASE

@@ -243,7 +243,7 @@
 	  that caused a core dump has been fixed.
 12-02-08  A bug in which .sh.fun disciplines could be cleared after a
 	  function completes has been fixed.
-12-02-08  A bug in job control in which the foregroup process group was not
+12-02-08  A bug in job control in which the foreground process group was not
 	  set correctly after restarting a stopped pipeline has been fixed.
 12-02-07  A bug in which numbers with leading zeros could be treated as
 	  octal constants outside of ((...)) has been fixed.
@@ -297,7 +297,7 @@
 	  quote argument in a form suitable for a field in a .csv format file.
 11-12-02 +A -S option was added to read to be able to read .csv format files.
 11-11-28  A bug in which redirection of standard error in a function called from
-	  command substitution caused standard error to be lost has ben fixed.
+	  command substitution caused standard error to be lost has been fixed.
 11-11-21  [[ (-n foo) ]] no longer requires a space before (.
 11-11-11  The readonly attribute for a variable now applies to compound
 	  assignments to that variable.
@@ -711,7 +711,7 @@
 	  was invoked on a two dimensional array, i.e., arr[5][9].discipline.
 10-07-19  Fixed a buffering problem which occurred when running a script with
 	  ssh and the parent ssh process is killed.
-10-07-14  Modified the parser to treat ((...)) inside [[...]] as ( (...) ) to
+10-07-14  Modified the parser to treat ((...)) inside [[ ... ]] as ( (...) ) so
 	  that it is a nested (...).
 10-07-09  A bug in the handling of process substitution inside command
 	  substitution as part of a pipeline has been fixed.
@@ -1580,7 +1580,7 @@
 	  name+=([sub]=value) could cause the array to become an associative
 	  array has been fixed.
 07-11-14  A bug in which typeset without arguments could coredump if a
-	  variable is declared as in indexed array and  has no elements has
+	  variable is declared as an indexed array and has no elements has
 	  been fixed.
 07-11-14  A bug in which creating a local SECONDS variable with typeset in
 	  a function could corrupt memory has been fixed.

src/cmd/ksh93/bltins/enum.c

@@ -57,10 +57,10 @@ static const char enum_type[] =
         "field splitting and pathname expansion are not performed on "
         "the arguments.  Tilde expansion occurs on \avalue\a.]"
 "[r?Enables readonly.  Once enabled, the value cannot be changed or unset.]"
-"[a?Indexed array. Each \aname\a will converted to an indexed "
+"[a?Indexed array. Each \aname\a is converted to an indexed "
         "array of type \b\f?\f\b.  If a variable already exists, the current "
         "value will become index \b0\b.]"
-"[A?Associative array. Each \aname\a will converted to an associative "
+"[A?Associative array. Each \aname\a is converted to an associative "
         "array of type \b\f?\f\b.  If a variable already exists, the current "
         "value will become subscript \b0\b.]"
 "[h]:[string?Used within a type definition to provide a help string  "

src/cmd/ksh93/bltins/misc.c

@@ -224,6 +224,10 @@ int    b_eval(int argc,char *argv[], Shbltin_t *context)
 	return(shp->exitval);
 }
 
+#if 0
+    /* for the dictionary generator */
+    int	b_source(register int n,char *argv[],Shbltin_t *context){}
+#endif
 int    b_dot_cmd(register int n,char *argv[],Shbltin_t *context)
 {
 	register char *script;
@@ -529,7 +533,7 @@ static void	print_times(struct timeval utime, struct timeval stime)
 	sfprintf(sfstdout, "%dm%02d%c%03ds %dm%02d%c%03ds\n", ut_min, ut_sec, radix, ut_ms, st_min, st_sec, radix, st_ms);
 }
 #if _lib_getrusage
-static void	print_cpu_times()
+static void	print_cpu_times(void)
 {
 	struct rusage usage;
 	/* Print the time (user & system) consumed by the shell. */
@@ -540,7 +544,7 @@ static void	print_cpu_times()
 	print_times(usage.ru_utime, usage.ru_stime);
 }
 #else  /* _lib_getrusage */
-static void	print_cpu_times()
+static void	print_cpu_times(void)
 {
 	struct timeval utime, stime;
 	double dtime;

src/cmd/ksh93/bltins/trap.c

@@ -183,6 +183,10 @@ int	b_trap(int argc,char *argv[],Shbltin_t *context)
 	return(0);
 }
 
+#if 0
+    /* for the dictionary generator */
+    int    b_stop(int argc,char *argv[],Shbltin_t *context){}
+#endif
 int	b_kill(int argc,char *argv[],Shbltin_t *context)
 {
 	register char *signame;

src/cmd/ksh93/bltins/typeset.c

@@ -191,7 +191,13 @@ int    b_alias(int argc,register char *argv[],Shbltin_t *context)
 
 #if 0
     /* for the dictionary generator */
-    int    b_local(int argc,char *argv[],Shbltin_t *context){}
+    int    b_autoload(int argc,register char *argv[],Shbltin_t *context){}
+    int    b_compound(int argc,register char *argv[],Shbltin_t *context){}
+    int    b_float(int argc,register char *argv[],Shbltin_t *context){}
+    int    b_functions(int argc,register char *argv[],Shbltin_t *context){}
+    int    b_integer(int argc,register char *argv[],Shbltin_t *context){}
+    int    b_local(int argc,register char *argv[],Shbltin_t *context){}
+    int    b_nameref(int argc,register char *argv[],Shbltin_t *context){}
 #endif
 int    b_typeset(int argc,register char *argv[],Shbltin_t *context)
 {

src/cmd/ksh93/data/builtins.c

@@ -1844,7 +1844,7 @@ const char sh_opttypeset[] =
 	"value will be displayed as an unsigned integer.]"
 "[x?Puts each \aname\a on the export list.  See \bexport\b(1).  \aname\a "
 	"cannot contain a \b.\b.]"
-"[A?Associative array.  Each \aname\a will converted to an associative "
+"[A?Associative array.  Each \aname\a is converted to an associative "
 	"array.  If a variable already exists, the current value will "
 	"become index \b0\b.]"
 "[C?Compound variable.  Each \aname\a will be a compound variable.  If "

src/cmd/ksh93/edit/emacs.c

@@ -1234,7 +1234,7 @@ static void xcommands(register Emacs_t *ep,int count)
 				show_info(ep,hbuf);
 				return;
 			}
-#	if !AST_ksh_release		/* debugging, modify as required */
+#	if !_AST_ksh_release		/* debugging, modify as required */
 		case cntl('D'):		/* ^X^D show debugging info */
 			{
 				char debugbuf[MAXLINE];

src/cmd/ksh93/edit/vi.c

@@ -501,7 +501,7 @@ int ed_viread(void *context, int fd, register char *shbuf, int nchar, int reedit
 		}
 
 		/*** Line terminated with escape, or escaped eol/eof, ***/
-		/*  so set raw mode */
+		/*** so set raw mode ***/
 
 		if( tty_raw(ERRIO,0) < 0 )
 		{

src/cmd/ksh93/include/nval.h

@@ -88,7 +88,7 @@ struct Namarray
 	void	*(*fun)(Namval_t*,const char*,int);	/* associative arrays */
 	void		*fixed;			/* for fixed sized arrays */
 	Dt_t		*table;			/* for subscripts */
-	void		*scope;			/* non-zerp when scoped */
+	void		*scope;			/* non-zero when scoped */
 };
 
 /* The context pointer for declaration command */

src/cmd/ksh93/include/shlex.h

@@ -113,7 +113,6 @@ typedef struct  _shlex_
 #define IORDWRSYM	(SYMGT|'<')
 #define IORDWRSYMT	(SYMSEMI|'<')
 #define IOCLOBSYM	(SYMPIPE|'>')
-#define PIPESYM2	(SYMPIPE|'&')
 #define IPROCSYM	(SYMLPAR|'<')
 #define OPROCSYM	(SYMLPAR|'>')
 #define EOFSYM		04000	/* end-of-file */

src/cmd/ksh93/nval.3

@@ -221,7 +221,7 @@ name-value pair as a string.  A \f5NULL\fP return value indicates
 that the name-value pair is unset.
 The \f5nv_getnum()\fP function returns the value of the given
 name-value pair as a double precision number using the \f5Sfio\fP
-library  (See Sfio(3)) type \f5Sfdouble_t\fP.
+library (see sfio(3)) type \f5Sfdouble_t\fP.
 For name-value pairs without the \f5NV_INTEGER\fP attribute,
 the string value is evaluated as an arithmetic expression to
 arrive at a numerical value.
@@ -541,7 +541,7 @@ and returned.
 .IP
 \f5NV_CLONE\fP:
 If \fIfp\fP is non-\f5NULL\fP and it is on the stack,
-it is replace by a copy created by \f5malloc\fP(3).
+it is replaced by a copy created by \f5malloc\fP(3).
 The \f5nofree\fP field is set to \f50\fP.
 The new discipline is returned.
 Otherwise, \f5NULL\fP is returned.

src/cmd/ksh93/sh.1

@@ -6145,7 +6145,7 @@ and IEEE POSIX 1003.2 standards.
 (See
 .IR pathconf (2)
 and
-.IR sysconf (2).)
+.IR sysconf (3).)
 The
 .I pathname
 argument is required for parameters whose value depends on
@@ -7479,7 +7479,7 @@ or
 \f3times\fP
 Displays the accumulated user and system CPU times, one line with the times
 used by the shell and another with those used by all of the shell's child
-processes. No options are supporetd.
+processes. No options are supported.
 .TP
 \(dg \f3trap\fP \*(OK \f3\-p\fP \*(CK \*(OK \f2action\^\fP \*(CK \*(OK \f2sig\^\fP \*(CK .\|.\|.
 The
@@ -8445,7 +8445,7 @@ except that the following are disallowed:
 .RS
 .PD 0
 .PP
-Unsetting the restricted option.
+unsetting the restricted option,
 .br
 changing directory (see
 .IR cd (1)),
@@ -8470,9 +8470,9 @@ redirecting output
 .BR >| ,
 .BR <> ,
 and
-.BR >> ).
+.BR >> ) ,
 .br
-adding or deleting built-in commands.
+adding or deleting built-in commands,
 .br
 using
 .B "command -p"
@@ -8591,7 +8591,7 @@ lseek(2),
 paste(1),
 pathconf(2),
 pipe(2),
-sysconf(2),
+sysconf(3),
 umask(2),
 ulimit(2),
 wait(2),

src/cmd/ksh93/sh/args.c

@@ -768,7 +768,7 @@ struct argnod *sh_argprocsub(Shell_t *shp,struct argnod *argp)
 	sh_offstate(SH_INTERACTIVE);
 	sh_offstate(SH_MONITOR);
 	job.jobcontrol = 0;
-	/* do the process substitution */
+	/* run the process substitution */
 	shp->subshell = 0;
 	if(fd)
 		shp->inpipe = pv;

src/cmd/ksh93/sh/array.c

@@ -871,13 +871,8 @@ static struct index_array *array_grow(Namval_t *np, register struct index_array
 			}
 		}
 		else
-		if((ap->val[0].cp=np->nvalue.cp))
+		if((ap->val[0].cp=np->nvalue.cp) || (nv_isattr(np,NV_INTEGER) && !nv_isnull(np)))
 			i++;
-		else if(nv_isattr(np,NV_INTEGER) && !nv_isnull(np))
-		{
-			Sfdouble_t d= nv_getnum(np);
-			i++;
-		}
 		ap->header.nelem = i;
 		ap->header.hdr.disc = &array_disc;
 		nv_disc(np,(Namfun_t*)ap, NV_FIRST);
@@ -1525,7 +1520,7 @@ char *nv_endsubscript(Namval_t *np, register char *cp, int mode)
 	{
 		Namarr_t *ap = nv_arrayptr(np);
 		/* Block an attempt to alter a readonly array via subscript assignment or by appending the array.
-		   However need to allow instances of type variables. This exception is observed when np->nvflag
+		   However instances of type variables must be allowed. This exception is observed when np->nvflag
 		   has NV_BINARY and NV_LJUST set besides NV_RDONLY and NV_ARRAY. */
 		if(nv_isattr(np,NV_RDONLY) && nv_isattr(np,NV_ARRAY) && mode&NV_ASSIGN && np->nvflag&(NV_BINARY|NV_LJUST)^(NV_BINARY|NV_LJUST))
 		{

src/cmd/ksh93/sh/init.c

@@ -210,13 +210,6 @@ static char		*env_init(Shell_t*);
 static void		env_import_attributes(Shell_t*,char*);
 static Init_t		*nv_init(Shell_t*);
 static int		shlvl;
-
-#ifdef _WINIX
-#   define EXE	"?(.exe)"
-#else
-#   define EXE
-#endif
-
 static int		rand_shift;
 
 /*

src/cmd/ksh93/sh/lex.c

@@ -2321,10 +2321,6 @@ struct argnod *sh_endword(Shell_t *shp,int mode)
 				break;
 			}
 			n = *sp;
-#if SHOPT_DOS
-			if(!(inquote&1) && sh_lexstates[ST_NORM][n]==0)
-				break;
-#endif /* SHOPT_DOS */
 			if(!(inquote&1) || (sh_lexstates[ST_QUOTE][n] && n!=RBRACE))
 			{
 				if(n=='\n')

src/cmd/ksh93/sh/name.c

@@ -734,9 +734,7 @@ Namval_t *nv_create(const char *name,  Dt_t *root, int flags, Namfun_t *dp)
 	long			mode, add=0;
 	int			copy=0,isref,top=0,noscope=(flags&NV_NOSCOPE);
 	int			nofree=0, level=0;
-#if SHOPT_FIXEDARRAY
 	Namarr_t		*ap;
-#endif /* SHOPT_FIXEDARRAY */
 	if(root==shp->var_tree)
 	{
 		if(dtvnext(root))
@@ -944,7 +942,7 @@ Namval_t *nv_create(const char *name,  Dt_t *root, int flags, Namfun_t *dp)
 				{
 					if(flags&NV_ARRAY)
 					{
-						Namarr_t *ap = nv_arrayptr(np);
+						ap = nv_arrayptr(np);
 						nq = nv_opensub(np);
 						if((flags&NV_ASSIGN) && (!nq || nv_isnull(nq)))
 							ap->nelem++;
@@ -1034,7 +1032,7 @@ Namval_t *nv_create(const char *name,  Dt_t *root, int flags, Namfun_t *dp)
 					if(c=='[')
 					{
 #if SHOPT_FIXEDARRAY
-						Namarr_t *ap = nv_arrayptr(np);
+						ap = nv_arrayptr(np);
 #endif /* SHOPT_FIXEDARRAY */
 						n = mode|nv_isarray(np);
 						if(!mode && (flags&NV_ARRAY) && ((c=sp[1])=='*' || c=='@') && sp[2]==']')
@@ -2604,36 +2602,6 @@ Namval_t *sh_scoped(Shell_t *shp, register Namval_t *np)
 	return(dtsearch(shp->var_tree,np));
 }
 
-/*
- * return space separated list of names of variables in given tree
- */
-static char *tableval(Dt_t *root)
-{
-	static Sfio_t *out;
-	register Namval_t *np;
-	register int first=1;
-	register Dt_t *base = dtview(root,0);
-        if(out)
-                sfseek(out,(Sfoff_t)0,SEEK_SET);
-        else
-                out =  sfnew((Sfio_t*)0,(char*)0,-1,-1,SF_WRITE|SF_STRING);
-	for(np=(Namval_t*)dtfirst(root);np;np=(Namval_t*)dtnext(root,np))
-	{
-                if(!nv_isnull(np) || np->nvfun || nv_isattr(np,~NV_NOFREE))
-		{
-			if(!first)
-				sfputc(out,' ');
-			else
-				first = 0;
-			sfputr(out,np->nvname,-1);
-		}
-	}
-	sfputc(out,0);
-	if(base)
-		dtview(root,base);
-	return((char*)out->_data);
-}
-
 #if SHOPT_OPTIMIZE
 struct optimize
 {

src/cmd/ksh93/sh/nvtype.c

@@ -41,12 +41,12 @@ static const char sh_opttype[] =
 	"field splitting and pathname expansion are not performed on "
 	"the arguments.  Tilde expansion occurs on \avalue\a.]"
 "[r?Enables readonly.  Once enabled, the value cannot be changed or unset.]"
-"[a]:?[type?Indexed array. Each \aname\a will converted to an indexed "
+"[a]:?[type?Indexed array. Each \aname\a is converted to an indexed "
 	"array of type \b\f?\f\b.  If a variable already exists, the current "
 	"value will become index \b0\b.  If \b[\b\atype\a\b]]\b is "
 	"specified, each subscript is interpreted as a value of enumeration "
 	"type \atype\a.]"
-"[A?Associative array. Each \aname\a will converted to an associative "
+"[A?Associative array. Each \aname\a is converted to an associative "
         "array of type \b\f?\f\b.  If a variable already exists, the current "
 	"value will become subscript \b0\b.]"
 "[h]:[string?Used within a type definition to provide a help string  "
@@ -666,7 +666,6 @@ static int typeinfo(Opt_t* op, Sfio_t *out, const char *str, Optdisc_t *fp)
 		nq = nv_namptr(dp->nodes,i);
 		if(tp=nv_type(nq))
 		{
-			Namfun_t *pp = nv_hasdisc(nq,&type_disc);
 			sfprintf(out,"\t[+%s?%s.\n",nq->nvname,tp->nvname);
 			n = strlen(nq->nvname);
 			while((cp=nv_namptr(dp->nodes,i+1)->nvname) && memcmp(cp,nq->nvname,n)==0 && cp[n]=='.')

src/cmd/ksh93/sh/path.c

@@ -1261,7 +1261,7 @@ pid_t path_spawn(Shell_t *shp,const char *opath,register char **argv, char **env
 
 /*
  * File is executable but not machine code.
- * Assume file is a Shell script and execute it.
+ * Assume file is a shell script and execute it.
  */
 
 static noreturn void exscript(Shell_t *shp,register char *path,register char *argv[],char **envp)

src/cmd/ksh93/sh/suid_exec.c

@@ -87,7 +87,9 @@ static const char version[]	= "\n@(#)$Id: suid_exec "SH_RELEASE" $\n";
 static const char badopen[]	= "cannot open";
 static const char badexec[]	= "cannot exec";
 static const char devfd[]	= "/dev/fd/10";	/* must match FDIN above */
+#ifndef _lib_setreuid
 static char tmpname[]		= "/tmp/SUIDXXXXXX";
+#endif
 static char **arglist;
 
 static char *shell;

src/cmd/ksh93/sh/xec.c

@@ -158,8 +158,7 @@ static void get_cpu_times(Shell_t *shp, struct timeval *tv_usr, struct timeval *
 #endif /* _lib_getrusage */
 
 #ifdef timeofday
-/* 'inline' is commented out because C89 doesn't have it */
+static inline double timeval_to_double(struct timeval tv)
-static /*inline*/ double timeval_to_double(struct timeval tv)
 {
 	return (double)tv.tv_sec + ((double)tv.tv_usec / 1000000.0);
 }

src/cmd/ksh93/tests/arrays.sh

@@ -132,7 +132,7 @@ y=* z=[
 s[$y]=1
 s[$z]=2
 if	(( ${#s[@]} != 2  ))
-then	err_exit 'number of elements of  is not 2'
+then	err_exit 'number of elements of s is not 2'
 fi
 (( s[$z] = s[$z] + ${s[$y]} ))
 if	[[ ${s[$z]} != 3  ]]

src/cmd/ksh93/tests/builtins.sh

@@ -748,11 +748,11 @@ foo=BUG command eval ':'
 # 'whence -f' should ignore functions
 foo_bar() { true; }
 actual="$(whence -f foo_bar)"
-whence -f foo_bar >/dev/null && err_exit "'whence -f' doesn't ignore functions (got '$(printf %q "$actual")')"
+whence -f foo_bar >/dev/null && err_exit "'whence -f' doesn't ignore functions (got $(printf %q "$actual"))"
 
 # whence -vq/type -q must be tested as well
 actual="$(type -f foo_bar 2>&1)"
-type -f foo_bar >/dev/null 2>&1 && err_exit "'type -f' doesn't ignore functions (got '$(printf %q "$actual")')"
+type -f foo_bar >/dev/null 2>&1 && err_exit "'type -f' doesn't ignore functions (got $(printf %q "$actual"))"
 type -qf foo_bar && err_exit "'type -qf' doesn't ignore functions"
 
 # Test the exit status of 'whence -q'
@@ -1060,7 +1060,7 @@ exp=1
 [[ $got == $exp ]] || err_exit "'kill %' has the wrong exit status (expected '$exp'; got '$got')"
 
 # ======
-# 'cd -' should recognize the value of an overriden $OLDPWD variable
+# 'cd -' should recognize the value of an overridden $OLDPWD variable
 # https://github.com/ksh93/ksh/pull/249
 # https://github.com/att/ast/issues/8
 

src/cmd/ksh93/tests/functions.sh

@@ -1153,7 +1153,7 @@ func2
 	}
 	foo
 EOF
-} 2> /dev/null || err_exit  'problem with unset -f  foo within function foo'
+} 2> /dev/null || err_exit  "problem with 'unset -f foo' within function foo"
 
 val=$($SHELL 2> /dev/null <<- \EOF
 	.sh.fun.set() { set -x; }

src/cmd/ksh93/tests/io.sh

@@ -776,7 +776,7 @@ got=$(umask 777; set +x; { cat <(echo ok); } 2>&1)
 
 # ======
 # https://github.com/att/ast/issues/1336
-# Use the /proc psuedo filesystem on Linux as a convenient way to force a write I/O error.
+# Use the /proc pseudo filesystem on Linux as a convenient way to force a write I/O error.
 if [[ $(uname) == Linux ]]
 then
 	actual=$($SHELL -c 'echo > /proc/self/uid_map; echo okay' 2>&1)

src/cmd/ksh93/tests/pty.sh

@@ -765,12 +765,14 @@ touch $'XXX\xc3\xa1' $'XXX\xc3\xab' &&
 tst $LINENO <<"!"
 L autocomplete should not fill partial multibyte characters
 # https://github.com/ksh93/ksh/issues/223
+
 d 15
 p :test-1:
 w : XX\t
 r ^:test-1: : XXX\r\n$
 !
 
+# err_exit #
 ((SHOPT_VSH)) && tst $LINENO <<"!"
 L Using b, B, w and W commands in vi mode
 # https://github.com/att/ast/issues/1467

src/lib/libast/RELEASE

@@ -283,7 +283,7 @@
 08-12-07 include/ast_std.h,misc/getenv.c: no _ast_getenv for uwin ast54 compatibility
 08-12-07 tm/tmxfmt.c: add %[_][EO]K for [space pad] [full|long] iso
 08-12-07 sfio/sfvscanf.c: fix ok[] short by one allocation
-08-12-07 comp/setlocale.c: fix off by one composite initialition loop test
+08-12-07 comp/setlocale.c: fix off by one composite initialization loop test
 08-12-07 path/pathkey.c: fix off by one loop test
 08-12-04 vmalloc/vmbest.c: catch sbrk() wraparound
 08-12-04 comp/spawnveg.c: clean up attrs on failure too

src/lib/libast/disc/sfdcdio.c

@@ -42,6 +42,8 @@ typedef struct _direct_s
 /* convert a pointer to an int */
 #define P2I(p)	(Sfulong_t)((char*)(p) - (char*)0)
 
+#ifdef F_DIOINFO
+
 #if __STD_C
 static ssize_t diordwr(Sfio_t* f, Void_t* buf, size_t n, Direct_t* di, int type)
 #else
@@ -59,7 +61,6 @@ int		type;
 	done = 0;	/* amount processed by direct IO */
 	rv = 0;
 
-#ifdef F_DIOINFO
 	if((P2I(buf)%di->dio.d_mem) == 0 &&
 	   (f->here%di->dio.d_miniosz) == 0 && n >= di->dio.d_miniosz )
 	{	/* direct IO ok, make sure we're in the right mode */
@@ -92,7 +93,6 @@ int		type;
 		di->cntl &= ~FDIRECT;
 		(void)fcntl(f->file, F_SETFL, di->cntl);
 	}
-#endif /*F_DIOINFO*/
 
 	if((rw = n-done) > 0 &&
 	   (rv = type == SF_READ ? read(f->file,buf,rw) : write(f->file,buf,rw)) > 0 )
@@ -141,18 +141,18 @@ Sfdisc_t*	disc;
 
 	if(type == SF_FINAL || type == SF_DPOP)
 	{
-#ifdef F_DIOINFO
 		if(di->cntl&FDIRECT)
 		{	di->cntl &= ~FDIRECT;
 			(void)fcntl(f->file,F_SETFL,di->cntl);
 		}
-#endif
 		free(disc);
 	}
 
 	return 0;
 }
 
+#endif /* F_DIOINFO */
+
 #if __STD_C
 int sfdcdio(Sfio_t* f, size_t bufsize)
 #else

src/lib/libast/include/ast.h

@@ -202,6 +202,14 @@ typedef struct
 #define FMT_EXP_NOCR	0x100		/* skip \r			*/
 #define FMT_EXP_NONL	0x200		/* skip \n			*/
 
+/*
+ * Define inline as an empty macro if we are
+ * compiling with C89.
+ */
+#if __STDC_VERSION__ < 199901L
+#define inline
+#endif
+
 /*
  * multibyte macros
  */

src/lib/libast/man/ast.3

@@ -226,7 +226,7 @@ outputs an
 prompt specified by
 .I "format, .\|.\|."
 to the controlling terminal and reads a response from the controlling terminal.
-Offirmative response returns
+Affirmative response returns
 .LR 0 ,
 .L EOF
 or quit response returns

src/lib/libast/man/sfio.3

@@ -2356,8 +2356,8 @@ symbol may be removed in a future release.
 The printing and scanning functions were extended to handle multibyte characters
 and to conform to the C99 standard.
 .PP
-The function \f5sfpoll()\fP was rehauled to make it useful
+The function \f5sfpoll()\fP was overhauled to make it useful
-for writing servers that must commnunicate with multiple streams
+for writing servers that must communicate with multiple streams
 without blocking.
 .PP
 The formatting pattern \f5%c\fP for \f5sf*printf\fP was extended

src/lib/libast/path/pathshell.c

@@ -47,6 +47,12 @@
  *       not done for `csh script arg ...'
  */
 
+#ifdef _WINIX
+#	define EXE "?(.exe)"
+#else
+#	define EXE
+#endif
+
 char*
 pathshell(void)
 {
@@ -59,13 +65,13 @@ pathshell(void)
 
 	static char*	val;
 
-	if ((sh = getenv("SHELL")) && *sh == '/' && strmatch(sh, "*/(sh|*[!cC]sh)*([[:digit:]])?(-+([.[:alnum:]]))?(.exe)"))
+	if ((sh = getenv("SHELL")) && *sh == '/' && strmatch(sh, "*/(sh|*[!cC]sh)*([[:digit:]])?(-+([.[:alnum:]]))" EXE))
 	{
 		if (!(ru = getuid()) || !eaccess("/bin", W_OK))
 		{
 			if (stat(sh, &st))
 				goto defshell;
-			if (ru != st.st_uid && !strmatch(sh, "?(/usr)?(/local)/?([ls])bin/?([[:lower:]])sh?(.exe)"))
+			if (ru != st.st_uid && !strmatch(sh, "?(/usr)?(/local)/?([ls])bin/?([[:lower:]])sh" EXE))
 				goto defshell;
 		}
 		else

src/lib/libast/string/fmtdev.c

@@ -30,6 +30,9 @@
 #include <ast.h>
 #include <ctype.h>
 #include <ls.h>
+#ifdef __linux__
+#include <sys/sysmacros.h>
+#endif
 
 char*
 fmtdev(struct stat* st)

src/lib/libcmd/cat.c

@@ -57,7 +57,7 @@ static const char usage[] =
     "converted back to the native encoding. Multibyte characters in the "
     "current locale are treated as printable characters.]"
 "[A:show-all?Equivalent to \b-vET\b.]"
-"[B:squeeze-blank?Multiple adjacent new-line characters are replace by one"
+"[B:squeeze-blank?Multiple adjacent new-line characters are replaced by one"
 "	new-line.]"
 "[D:dos-output?Output files are opened in \atext\amode which inserts carriage"
 "	returns in front of new-lines on some systems.]"

src/lib/libsum/sum-sha2.c

@@ -40,7 +40,7 @@
  * ASSERT NOTE:
  * Some sanity checking code is included using assert().  On my FreeBSD
  * system, this additional code can be removed by compiling with NDEBUG
- * defined.  Check your own systems man page on assert() to see how to
+ * defined.  Check your own system's man page on assert() to see how to
  * compile WITHOUT the sanity checking code on your system.
  *
  * UNROLLED TRANSFORM LOOP NOTE: