liu-du 0ca740d9a6 xargs: fix exit code when using -P
currently when xargs runs in parallel mode (e.g. -P2), it somtimes
incorrectly returns zero exit code.  this commit fix it and also adds
tests.

Reviewed by:	mjg
PR:	267110
2022-10-17 10:39:04 +00:00
..
2022-10-17 10:39:04 +00:00
2022-10-17 10:39:04 +00:00