Updated openstack/openstack
Project: openstack/python-keystoneclient  cda707f19598d05ff5c7eb5c0462f1a76389c7e6

move attributes of v3.client.Client into alphabetical order

Just make self.users be consistent with the other assignments.

Change-Id: Ib3053774e9dd905eb4ef50668d6638ce19750177