Attempt to be more helpful when using a bad ao2 object pointer.

Put the external obj pointer in the message instead of the internal version.
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Merged revisions 379963 from http://svn.asterisk.org/svn/asterisk/branches/1.8
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Merged revisions 379964 from http://svn.asterisk.org/svn/asterisk/branches/11


git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@379966 65c4cc65-6c06-0410-ace0-fbb531ad65f3