Updated openstack/openstack
Project: openstack/sahara  20f01fe2e9f62b1de404ec096d3702a76323f80b

Fixed pep8 after oslo.db config update

Oslo.db update is causing jenkins failure for all patched.

Change-Id: Ibc1622bed6a09bbc1039dbe858a246c49c124706
Closes-Bug: #1393617