Updated openstack/openstack
Project: openstack/oslo.messaging  2c4e79f816c4a507ab44913351611165433d664d
null
Build log_handler documentation

When log_handler.py was added to oslo.messaging changes weren't made to
publish the documentation. This patch ensures the docs for log_handler
are built.

Change-Id: Ibf60f648ad07875fb4c61427e601b6b268a95f53
Closes-Bug: 1286984