Updated openstack/openstack
Project: openstack/python-neutronclient  308d71427a06da52cb1689dedb9aab0f443fef6c
null
Replace assertEqual(None, *) with assertIsNone in tests

Replace assertEqual(None, *) with assertIsNone in tests to have
more clear messages in case of failure.

Change-Id: I442951deb2bc6df199a1dd76142f71fc92e6f745
Closes-Bug:#1280522