mac80211: add missing space in error message

Signed-off-by: Bruno Randolf <bruno@thinktube.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
diff --git a/net/mac80211/ieee80211_sta.c b/net/mac80211/ieee80211_sta.c
index 015b3f8..16afd24 100644
--- a/net/mac80211/ieee80211_sta.c
+++ b/net/mac80211/ieee80211_sta.c
@@ -2647,7 +2647,7 @@
 	local->sta_scanning = 0;
 
 	if (ieee80211_hw_config(local))
-		printk(KERN_DEBUG "%s: failed to restore operational"
+		printk(KERN_DEBUG "%s: failed to restore operational "
 		       "channel after scan\n", dev->name);