Merged revisions 328609 via svnmerge from

https://origsvn.digium.com/svn/asterisk/branches/1.10

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  r328609 | markm | 2011-07-18 08:37:53 -0400 (Mon, 18 Jul 2011) | 15 lines
  
  Merged revisions 328593 via svnmerge from 
  https://origsvn.digium.com/svn/asterisk/branches/1.8
  
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    r328593 | markm | 2011-07-18 08:06:50 -0400 (Mon, 18 Jul 2011) | 8 lines
    
    Fixed invalid read and null pointer deref on asterisk shutdown.
    
    In some cases when starting asterisk with -c and hitting control-c to shutdown, there will be an invalid read and null pointer deref causing a crash.
    
    (closes issue ASTERISK-17927)
    Reported by: Mark Murawski
    Tested by: Mark Murawski, Kinsey Moore, Tilghman Lesher
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git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@328610 65c4cc65-6c06-0410-ace0-fbb531ad65f3