Merged revisions 264999 via svnmerge from

https://origsvn.digium.com/svn/asterisk/branches/1.4

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  r264999 | mmichelson | 2010-05-21 11:53:53 -0500 (Fri, 21 May 2010) | 3 lines
  
  Fix grammatical error in comment.
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git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@265000 65c4cc65-6c06-0410-ace0-fbb531ad65f3

include/asterisk/channel.h

@@ -1480,7 +1480,7 @@ int ast_waitfor(struct ast_channel *chan, int ms);
  *
  * There are functions such as ast_safe_sleep which will
  * service a channel to ensure that it does not have a
- * have a large backlog of queued frames. When this happens,
+ * large backlog of queued frames. When this happens,
  * we want to hold on to specific frame types and just drop
  * others. This function will tell if the frame we just
  * read should be held onto.