Merged revisions 283207 via svnmerge from

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

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  r283207 | russell | 2010-08-23 07:31:20 -0500 (Mon, 23 Aug 2010) | 2 lines
  
  Tack on ${eventextra} to the sample cel_custom.conf.
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git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@283208 65c4cc65-6c06-0410-ace0-fbb531ad65f3