Blocked revisions 338493 via svnmerge

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  r338493 | lmadsen | 2011-09-29 13:32:28 -0500 (Thu, 29 Sep 2011) | 14 lines

  Merged revisions 338492 via svnmerge from
  https://origsvn.digium.com/svn/asterisk/branches/1.8

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    r338492 | lmadsen | 2011-09-29 13:31:33 -0500 (Thu, 29 Sep 2011) | 6 lines

    Update documentation for SIP_HEADER.

    The SIP_HEADER function only works on the the initial SIP INVITE. The documentation was updated
    in trunk, but not in 1.8 or 10, so I'm making them match.

    (Closes issue ASTERISK-18640)
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git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@338494 65c4cc65-6c06-0410-ace0-fbb531ad65f3