Merged revisions 302634 via svnmerge from

https://origsvn.digium.com/svn/asterisk/branches/1.8

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  r302634 | tilghman | 2011-01-19 14:24:57 -0600 (Wed, 19 Jan 2011) | 22 lines
  
  Merged revisions 302599 via svnmerge from 
  https://origsvn.digium.com/svn/asterisk/branches/1.6.2
  
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    r302599 | tilghman | 2011-01-19 14:13:24 -0600 (Wed, 19 Jan 2011) | 15 lines
    
    Kill zombies.
    
    When we ast_safe_fork() with a non-zero argument, we're expected to reap our
    own zombies.  On a zero argument, however, the zombies are only reaped when
    there aren't any non-zero forked children alive.  At other times, we
    accumulate zombies.  This code is forward ported from res_agi in 1.4, so that
    forked children are always reaped, thus preventing an accumulation of zombie
    processes.
    
    (closes issue #18515)
    Reported by: ernied
    Patches: 
          20101221__issue18515.diff.txt uploaded by tilghman (license 14)
    Tested by: ernied
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