UltraRogue: don't swap signal handlers. In md_shellescape(), signal handlers for SIGINT and SIGQUIT were saved and restored, but exchanged in the process. This was fixed in the other games by commit 600873555ec0. Deleting md_shellescape() might have been a better fix. It is apparently unused.

/*
 * Super-Rogue
 * Copyright (C) 1984 Robert D. Kindelberger
 * All rights reserved.
 *
 * See the file LICENSE.TXT for full copyright and licensing information.
 */

#include	<sgtty.h>
typedef	struct sgttyb	SGTTY;
static SGTTY _tty, _res_flg;