K 10
svn:author
V 6
jilles
K 8
svn:date
V 27
2014-03-20T22:38:13.270487Z
K 7
svn:log
V 276
sh: Don't overwrite old exit status if a PID is reused.

Only store exit status for a process if that process has not terminated yet.

Test (slow):
  exit 7 & p1=$!; until exit 8 & p2=$!; [ "$p1" = "$p2" ]; do wait "$p2";
  done; sleep 0.1; wait %1; echo $?
should write "7".

END