Convert this file over the new method of getting the Asterisk version.

(I don't have this building on this machine, so caio1982 on IRC is going to
 test it for me.  :) )


git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@96743 65c4cc65-6c06-0410-ace0-fbb531ad65f3