sms: Add vty command to trigger running the queue.

Allow to manually trigger running the queue. This can be useful
if SMS were manually added to the database or such.
diff --git a/openbsc/src/sms_queue.c b/openbsc/src/sms_queue.c
index ee43987..1161b6c 100644
--- a/openbsc/src/sms_queue.c
+++ b/openbsc/src/sms_queue.c
@@ -403,7 +403,7 @@
 		smsq->max_pending, smsq->pending, VTY_NEWLINE);
 
 	llist_for_each_entry(pending, &smsq->pending_sms, entry)
-		vty_out(vty, " SMS Pending for Subscriber: %llu%s\n",
+		vty_out(vty, " SMS Pending for Subscriber: %llu%s",
 			pending->subscr->id, VTY_NEWLINE);
 	return 0;
 }