Comment 4 for bug 1620696

So it seems the patch breaking this is:
commit 753131d6b5520552f73c9489274f2bd3c25b9e50
Author: Steven Hardy <email address hidden>
Date: Thu Aug 25 17:39:54 2016 +0100

    Create hiera service_enabled keys for enabled services

I still need to test with a heat version on the undercloud that includes the following bugfix:
https://bugs.launchpad.net/heat/+bug/1617019