Updated openstack/openstack
Project: openstack/heat  9900be889e5a4d7ca3dc627c4f847dcd1412057b
null
Sort the output of config/generator.py by group name

To avoid huge changes in the output when adding new option groups.

Sync from oslo commit 4b3e32b980cf1d028da9325b21183ff635fbe043.

Closes-Bug: #1258363

Change-Id: I9173a38d4d548ce641e19ada30f86148c1f0c53f