commando: don't look at messages *at all* unless they've created a rune.

This means we can leave commando on by default, without an explicit config flag.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>

plugins/commando.c

@@ -263,7 +263,8 @@ static void handle_incmd(struct node_id *peer,
 {
 	struct commando *incmd;
 
-	/* FIXME: don't do *anything* unless they've set up a rune. */
+	if (!rune_counter)
+		return;
 
 	incmd = find_commando(incoming_commands, peer, NULL);
 	/* Don't let them buffer multiple commands: discard old. */