In the times(3) fallback for the time keyword (which can be enabled
in xec.c by undefining _lib_getrusage and timeofday), ksh will
print the obtained time incorrectly if TIMEFORMAT is set to use a
precision level of three:
$ TIMEFORMAT=$'\nreal\t%3lR'
$ time sleep .080
real 0m00.008s # Should be '00.080s'
This commit corrects that issue by using 10^precision to get the
correct fractional scaling. Note that the fallback still doesn't
support a true precision level of three (times(3) alone doesn't
support it), so this in effect pads a zero to the end of the output
when the precision level is three.
Additional change to tests/builtins.sh:
- While fixing the above issue I found out that ksh93v- broke
support for passing microseconds to the sleep builtin in the form
of <num>U. I've added a regression test for that bug to ensure it
isn't backported to ksh93u+m by accident.
Co-authored-by: Martijn Dekker <martijn@inlv.org>
307bc3edce