Various minor capitalization and typo fixes (#371)

This commit fixes various minor typos, punctuation errors and
corrects the capitalization of many names.

src/cmd/ksh93/sh/array.c

@@ -1778,7 +1778,7 @@ void *nv_associative(register Namval_t *np,const char *sp,int mode)
 					sh_assignok(np,1);
 				/*
 				 * For enum types (NV_UINT16 with discipline ENUM_disc), nelem should not
-				 * not increased or 'unset' will fail to completely unset such an array.
+				 * increase or 'unset' will fail to completely unset such an array.
 				 */
 				if((!ap->header.scope || !nv_search(sp,dtvnext(ap->header.table),0))
 				&& !(type==NV_UINT16 && nv_hasdisc(np, &ENUM_disc)))

src/cmd/ksh93/sh/jobs.c

@@ -326,7 +326,7 @@ int job_reap(register int sig)
 			sh_offstate(SH_TTYWAIT);
 
 		/*
-		 * some systems (linux 2.6) may return EINVAL
+		 * some systems (Linux 2.6) may return EINVAL
 		 * when there are no continued children
 		 */
 
@@ -1131,7 +1131,6 @@ int job_hup(struct process *pw, int sig)
 
 /*
  * Get process structure from first letters of jobname
- *
  */
 
 static struct process *job_byname(char *name)

src/cmd/ksh93/sh/lex.c

@@ -2426,7 +2426,7 @@ static int alias_exceptf(Sfio_t *iop,int type,void *data, Sfdisc_t *handle)
 	}
 	if(ap->nextc)
 	{
-		/* if last character is a blank, then next word can be alias */
+		/* if last character is a blank, then next word can be an alias */
 		register int c = fcpeek(-1);
 		if(isblank(c))
 			lp->aliasok = 1;

src/cmd/ksh93/sh/macro.c

@@ -487,7 +487,7 @@ static void copyto(register Mac_t *mp,int endch, int newquote)
 		    case S_ESC:
 			if(ansi_c)
 			{
-				/* process ANSI-C escape character */
+				/* process ANSI C escape character */
 				char *addr= --cp;
 				if(c)
 					sfwrite(stkp,first,c);

src/cmd/ksh93/sh/main.c

@@ -269,7 +269,7 @@ int sh_main(int ac, char *av[], Shinit_f userinit)
 					}
 #if !_WINIX
 					/*
-					 * try to undo effect of solaris 2.5+
+					 * try to undo effect of Solaris 2.5+
 					 * change for argv for setuid scripts
 					 */
 					if(shp->st.repl_index > 0)
@@ -344,7 +344,7 @@ int sh_main(int ac, char *av[], Shinit_f userinit)
 				sh_accbegin(error_info.id);
 #endif	/* SHOPT_ACCT */
 		}
-		/* If the shell is init'ed with std{in,out,err} closed, make the shell's FD state reflect that. */
+		/* If the shell is initialised with std{in,out,err} closed, make the shell's FD state reflect that. */
 		for(i=0; i<=2; i++)
 			if(fcntl(i,F_GETFD,NiL)==-1 && errno==EBADF)	/* closed at OS level? */
 				sh_close(i); 				/* update shell FD state */

src/cmd/ksh93/sh/pmain.c

@@ -25,7 +25,7 @@
 #include	"FEATURE/externs"
 
 #if defined(__sun) && _sys_mman && _lib_memcntl && defined(MHA_MAPSIZE_STACK) && defined(MC_HAT_ADVISE)
-#   undef	VM_FLAGS	/* solaris vs vmalloc.h symbol clash */
+#   undef	VM_FLAGS	/* Solaris vs vmalloc.h symbol clash */
 #   include	<sys/mman.h>
 #else
 #   undef	_lib_memcntl

src/cmd/ksh93/sh/streval.c

@@ -855,7 +855,7 @@ again:
 				}
 				else
 					d = chresc(pos+1,(char**)&vp->nextchr);
-				/* posix allows the trailing ' to be optional */
+				/* POSIX allows the trailing ' to be optional */
 				if(*vp->nextchr=='\'')
 					vp->nextchr++;
 			}

src/cmd/ksh93/sh/suid_exec.c

@@ -23,7 +23,7 @@
  * This is a program to execute 'execute only' and suid/sgid shell scripts.
  * This program must be owned by root and must have the set uid bit set.
  * It must not have the set group id bit set.  This program must be installed
- * where the define parameter THISPROG indicates to work correctly on system V
+ * where the define parameter THISPROG indicates to work correctly on System V.
  *
  *  Written by David Korn
  *  AT&T Labs
@@ -31,7 +31,7 @@
  */
 
 /* The file name of the script to execute is argv[0]
- * Argv[1] is the program name
+ * argv[1] is the program name
  * The basic idea is to open the script as standard input, set the effective
  *   user and group id correctly, and then exec the shell.
  * The complicated part is getting the effective uid of the caller and 
@@ -372,7 +372,7 @@ static void setids(int mode,int owner,int group)
 /*
  * This version of setids creates a /tmp file and copies itself into it.
  * The "clone" file is made executable with appropriate suid/sgid bits.
- * Finally, the clone is exec'ed.  This file is unlinked by a grandchild
+ * Finally, the clone is exec'd.  This file is unlinked by a grandchild
  * of this program, who waits around until the text is free.
  */
 

src/cmd/ksh93/sh/xec.c

@@ -275,7 +275,7 @@ static void p_time(Shell_t *shp, Sfio_t *out, const char *format, clock_t *tm)
 		if(c=='\0')
 		{
 			/* If a lone percent is the last character of the format pretend
-			   the user had written `%%` for a literal percent */
+			   the user had written '%%' for a literal percent */
 			sfwrite(stkp, "%", 1);
 			first = format + 1;
 			break;
@@ -775,7 +775,7 @@ static void free_list(struct openlist *olist)
 
 /*
  * set ${.sh.name} and ${.sh.subscript}
- * set _ to reference for ${.sh.name}[$.sh.subscript]
+ * set _ to reference for ${.sh.name}[${.sh.subscript}]
  */
 static int set_instance(Shell_t *shp,Namval_t *nq, Namval_t *node, struct Namref *nr)
 {
@@ -1104,7 +1104,7 @@ int sh_exec(register const Shnode_t *t, int flags)
 			
 						}
 #endif /* SHOPT_TYPEDEF */
-						if((shp->fn_depth && !shp->prefix))
+						if(shp->fn_depth && !shp->prefix)
 							flgs |= NV_NOSCOPE;
 					}
 					else if(np==SYSEXPORT)
@@ -1139,12 +1139,12 @@ int sh_exec(register const Shnode_t *t, int flags)
 			}
 			last_table = shp->last_table;
 			shp->last_table = 0;
-			if((io||argn))
+			if(io || argn)
 			{
 				Shbltin_t *bp=0;
 				static char *argv[2];
 				int tflags = 1;
-				if(np &&  nv_isattr(np,BLT_DCL))
+				if(np && nv_isattr(np,BLT_DCL))
 					tflags |= 2;
 				if(execflg && !check_exec_optimization(io))
 					execflg = 0;
@@ -2843,7 +2843,7 @@ int sh_trace(Shell_t *shp,register char *argv[], register int nl)
 
 /*
  * This routine creates a subshell by calling fork() or vfork()
- * If ((flags&COMASK)==TCOM), then vfork() is permitted
+ * If ((flags&COMMSK)==TCOM), then vfork() is permitted
  * If fork fails, the shell sleeps for exponentially longer periods
  *   and tries again until a limit is reached.
  * SH_FORKLIM is the max period between forks - power of 2 usually.
@@ -2860,7 +2860,6 @@ static void timed_out(void *handle)
 	timeout = 0;
 }
 
-
 /*
  * called by parent and child after fork by sh_fork()
  */
@@ -3049,8 +3048,8 @@ static void  local_exports(register Namval_t *np, void *data)
 }
 
 /*
- * This routine executes .sh.math functions from within ((...)))
-*/
+ * This routine executes .sh.math functions from within ((...))
+ */
 Sfdouble_t sh_mathfun(Shell_t *shp,void *fp, int nargs, Sfdouble_t *arg)
 {
 	Sfdouble_t	d;