routing: don't coredump on routes to neighbors.

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

daemon/routing.c

@@ -321,6 +321,8 @@ struct peer *find_route(struct lightningd_state *dstate,
 	msatoshi += *fee;
 	log_info(dstate->base_log, "find_route:");
 	log_add_struct(dstate->base_log, "via %s", struct pubkey, first->id);
+	/* If there are intermidiaries, dump them, and total fees. */
+	if (best != 0) {
 		for (i = 0; i < best; i++) {
 			log_add_struct(dstate->base_log, " %s",
 				       struct pubkey, &(*route)[i]->dst->id);
@@ -332,7 +334,7 @@ struct peer *find_route(struct lightningd_state *dstate,
 		}
 		log_add(dstate->base_log, "=%"PRIi64"(%+"PRIi64")",
 			(*route)[best-1]->dst->bfg[best-1].total, *fee);
-
+	}
 	return first;
 }