Merged revisions 330369 via svnmerge from

https://origsvn.digium.com/svn/asterisk/branches/10

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  r330369 | rmudgett | 2011-07-30 18:57:56 -0500 (Sat, 30 Jul 2011) | 11 lines
  
  Merged revisions 330368 via svnmerge from 
  https://origsvn.digium.com/svn/asterisk/branches/1.8
  
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    r330368 | rmudgett | 2011-07-30 18:56:29 -0500 (Sat, 30 Jul 2011) | 4 lines
    
    Remove some redundant locking code in ast_do_masquerade().
    
    Also updated some comments.
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git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@330370 65c4cc65-6c06-0410-ace0-fbb531ad65f3