thanks to milki for all the efforts!
Details:
- partial-copy fell afoul of BSD not having $RANDOM
- test suite: fix bad GNU sort with good perl sort
- test suite: fix md5sum dependency (which BSD doesn't have or can't
easily have or requires extra options or whatever...), by doing it
in perl. (Requires Digest::MD5, which is probably available
anyway, but since this is only for the test suite, meh!)
I had not remembered that the 'tc' subcommand in tsh adds *text* that
contains the current time, so commit SHAs were changing.
Thanks to milki for catching this, and in fact being the only person who
ever appears to have attempted to run the test suite at all!
The fix is easy enough, but I hate having to code work-arounds for
proprietary OSs when the same code works fine on Linux and BSD.
/me wisely avoids words like posix in his rant ;-)
Thanks to Franck Zoccolo for help in finding what the problem was and
when and why it occurred.
----
Someday there will be some issue that requires a fix with significant
code change (or worse, a change that is incompatible with Linux), and I
will probably refuse. Of course, I will be properly regretful about my
inability to fix it.[1]
