change (iax2,sip) show (peers,users) to use 'like <pattern>' for...

change (iax2,sip) show (peers,users) to use 'like <pattern>' for pattern-matching to be consistent with other CLI commands


git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@5549 65c4cc65-6c06-0410-ace0-fbb531ad65f3