Convert one more delimiter to use comma.

(closes issue #12850)
 Reported by: bcnit
 Patches: 
       20080613__bug12850.diff.txt uploaded by Corydon76 (license 14)
 Tested by: bcnit


git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@122557 65c4cc65-6c06-0410-ace0-fbb531ad65f3