Updated openstack/openstack
Project: openstack/python-openstackclient  f3dbab4a6c90541257c10b4b9389455b3e6cec13

Fix PEP8 E302 errors

Also add remaining skipped checks to HACKING

Change-Id: I0c4333ce29597e0a8a233af17c15bed2b4d0711f