Updated openstack/openstack
Project: openstack/ceilometer  6358e4153cb470f3d7b68c84d41a2ee69fa4c77b

Edits assert method

Makes changes in assert method in
tests/hardware/pollsters/test_util.py.

Replaces assertEqual(None, s.user_id)
on assertIsNone(s.user_id).

Change-Id: Iafa437bcd2408845ba6b443474fcf838eae109e4