Fix a typo that caused this asterisk.conf to not get correctly generated.

(closes issue #12966)
Reported by: ibc
Patches:
      12966.patch uploaded by bkruse (license 132)


git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@127152 65c4cc65-6c06-0410-ace0-fbb531ad65f3