rt2x00: trivial: add missing \n on warnings

Signed-off-by: Johannes Stezenbach <js@sig21.net>
Signed-off-by: Ivo van Doorn <IvDoorn@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
diff --git a/drivers/net/wireless/rt2x00/rt2x00mac.c b/drivers/net/wireless/rt2x00/rt2x00mac.c
index 829bf4b..7ad4b27 100644
--- a/drivers/net/wireless/rt2x00/rt2x00mac.c
+++ b/drivers/net/wireless/rt2x00/rt2x00mac.c
@@ -745,7 +745,7 @@
 		}
 
 		if (!rt2x00queue_empty(queue))
-			WARNING(rt2x00dev, "Failed to flush queue %d", queue->qid);
+			WARNING(rt2x00dev, "Failed to flush queue %d\n", queue->qid);
 	}
 
 	ieee80211_wake_queues(hw);