Logging callid: Fix some sizeof() references per coding guidelines.

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Merged revisions 405281 from http://svn.asterisk.org/svn/asterisk/branches/11
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Merged revisions 405282 from http://svn.asterisk.org/svn/asterisk/branches/12


git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@405284 65c4cc65-6c06-0410-ace0-fbb531ad65f3