Jilles Tjoelker 9e7839f632 kill: Stop processing if a syntactically invalid pid is encountered.
So a command like
  kill _HUP 1
now fails without sending SIGTERM to init.

The behaviour when kill(2) fails remains unchanged: processing continues.
This matches other implementations and POSIX and is useful for killing
multiple processes at once when some of them may already be gone.

PR:		bin/40282
2010-07-29 16:40:45 +00:00
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