Updated openstack/openstack
Project: openstack/oslo-incubator  6e450ad8a3e0ec97750e48f4c337c843eed7b336

Allow test_lockutils to run in isolation

While trying to port oslo to python 3, we discovered that test_lockutils
wasn't working when not run with the global test suite. The fix can be
tested running:

$ python -m openstack.common.lockutils python -m testtools.run \
  tests.unit.test_lockutils

Change-Id: I51461f63cdd8e7eb6f8b6fdfa838748a582ecdad