res_stasis_snoop.c: Fix off nominial exit path leaving Snoop channel locked and not hungup.

* Made use ast_copy_string() instead of strcpy() for snoop uniqueid for
safety.  There is no guarantee that the max channel uniqueid length will
remain the same as the snoop uniqueid space.
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Merged revisions 420879 from http://svn.asterisk.org/svn/asterisk/branches/13


git-svn-id: http://svn.asterisk.org/svn/asterisk/trunk@420880 f38db490-d61c-443f-a65b-d21fe96a405b
chan_sip: Fix type mismatch when the format is changed.

Symptom is most likely an invalid ao2 object bad magic number message or a
less likely crash.
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Merged revisions 420881 from http://svn.asterisk.org/svn/asterisk/branches/13


git-svn-id: http://svn.asterisk.org/svn/asterisk/trunk@420882 f38db490-d61c-443f-a65b-d21fe96a405b