Make setup_logger take keyword arguments.

celery/log.py

@@ -7,7 +7,8 @@ from celery.conf import LOG_FORMAT, DAEMON_LOG_LEVEL
 __all__ = ["setup_logger", "emergency_error"]
 
 
-def setup_logger(loglevel=DAEMON_LOG_LEVEL, logfile=None, format=LOG_FORMAT):
+def setup_logger(loglevel=DAEMON_LOG_LEVEL, logfile=None, format=LOG_FORMAT,
+        **kwargs):
     """Setup the ``multiprocessing`` logger. If ``logfile`` is not specified,
     ``stderr`` is used.