Fix final termination of logger

We need to do a bit more finagling with the logger on termination to
ensure that all messages are written and the queue drained before
actually terminating.

node-daemon/pvcnoded/Daemon.py

@@ -761,6 +761,7 @@ def cleanup():
         pass
 
     logger.out('Terminated pvc daemon', state='s')
+    logger.terminate()
 
     os._exit(0)