shell/hush_test/hush-signals/signal5.right

   1 Sleeping
   2 Sleeping
   3 Waiting
   4 2 sec passed, sending USR1 to parent
   5 USR1 received
   6 Wait exit code: 138
   7 Waiting
   8 3 sec passed, sending USR1 to parent
   9 USR1 received
  10 Wait exit code: 138
  11 Waiting
  12 Wait returned 0