Fix memory issue that crept up with Russell's testing. It is *not* proper to...

Fix memory issue that crept up with Russell's testing. It is *not* proper to free the frame we get in ast_write.


git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@81858 65c4cc65-6c06-0410-ace0-fbb531ad65f3