Updated openstack/openstack
Project: openstack/python-keystoneclient  8e89f55aa3262167e9e9fe1a4a71dbf0c5dd0b60

Doc build fails if warnings

If the docstrings are invalid then the commit should fail the gate.

Change-Id: Iabe506fa914ac5e742c0c5f4682ed0471c4a64ca