We ignore SIGWINCH until ready, so send a MSG_RESIZE immediately when

becoming ready.

client.c

@@ -520,6 +520,7 @@ client_dispatch_wait(void *data)
 
 			event_del(&client_stdin);
 			client_attached = 1;
+			client_write_server(MSG_RESIZE, NULL, 0);
 			break;
 		case MSG_STDIN:
 			if (datalen != 0)