connectd: at disconnected, tell lightningd how long we were connected.

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

devtools/gossipwith.c

@@ -182,6 +182,7 @@ static struct io_plan *handshake_success(struct io_conn *conn,
 					 struct crypto_state *cs,
 					 struct oneshot *timer,
 					 enum is_websocket is_websocket,
+					 struct timemono starttime,
 					 char **args)
 {
 	int peer_fd = io_conn_fd(conn);