Updating app_skel.c to follow coding guidelines

with regards to braces used on if statements.

(closes issue #13696)
Reported by: alecdavis
Patches:
      app_skel.bug13696B.115850.diff.txt uploaded by alecdavis (license 585)



git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@150255 65c4cc65-6c06-0410-ace0-fbb531ad65f3