Update the sample configuration, to use Macro less (since it's now deprecated).

(closes issue #12293)
 Reported by: pprindeville
 Patches: 
       bugid-0012293.1.6.patch uploaded by pprindeville (license 347)


git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@110689 65c4cc65-6c06-0410-ace0-fbb531ad65f3