Updated openstack/openstack
Project: openstack/oslo.concurrency  baee4673eb7420bae17e2667162f388d17836924

Use ConfigFilter for opts

This will prevent them being registered on the global config object
and becoming available to consuming applications.

Change-Id: Ibddb876d18c6aefef9dca08cf5883d8bdca17925
bp graduate-oslo-concurrency