Make sure the rc event loops exit true normally, to prevent an extra wmiirc spawning at exit.

cmd/wmii.rc.rc

@@ -148,6 +148,7 @@ fn wi_eventloop {
 		event = $1; shift
 		Event-$"event $*
 	} >[2]/dev/null </dev/null
+	true
 }
 
 fn Event-Key {

cmd/wmii.sh.sh

@@ -181,6 +181,7 @@ wi_eventloop() {
 		event=$1; shift
 		Event $event "$@"
 	done
+	true
 }
 
 action() {