https://github.com/rackerlabs/silverberg/pull/33/files#L1R298 (`test_acquire_logs`) has changes that ensures that intermitent 'released lock' messages do not occur. By testing for exact messages it ensures that different claim id is logged and multiple 'released lock' is not logged. The test `test_release_logs` is meant to test whether 'released lock' message is logged in normal scenario when the lock is released. Maybe I should've a separate test for different claim id, separate test for intermittent released lock not logged and a separate test for normal release lock log?