Recorded merge of revisions 377340 from http://svn.asterisk.org/svn/asterisk/branches/11

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Add CLI tab completion to 'acl show'.

The 'acl show' CLI command allows you to show the details about a specific
named ACL in acl.conf.  This patch adds tab completion to the command.

Review: https://reviewboard.asterisk.org/r/2230/


git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@377341 65c4cc65-6c06-0410-ace0-fbb531ad65f3