tcptls: Avoid compiler warning on non-dev-mode.
........

Merged revisions 420654 from http://svn.asterisk.org/svn/asterisk/branches/1.8
........

Merged revisions 420655 from http://svn.asterisk.org/svn/asterisk/branches/11
........

Merged revisions 420656 from http://svn.asterisk.org/svn/asterisk/branches/12


git-svn-id: http://svn.asterisk.org/svn/asterisk/branches/13@420657 f38db490-d61c-443f-a65b-d21fe96a405b