Copyright for tenace source package in Sid

This is the tenace package, a bridge hand viewer and editor written and
maintained by Christoph Berg .

Upstream website: http://www.df7cb.de/bridge/tenace/

License and copyright:
/*
 *  tenace - bridge hand viewer and editor
 *  Copyright (C) 2005-2018 Christoph Berg 
 *
 *  This program is free software; you can redistribute it and/or modify
 *  it under the terms of the GNU General Public License as published by
 *  the Free Software Foundation; either version 2 of the License, or
 *  (at your option) any later version.
 *
 *  This program is distributed in the hope that it will be useful,
 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *  GNU General Public License for more details.
 */

On Debian systems, the complete text of the GNU General Public License can be
found in the file /usr/share/common-licenses/GPL.

The shipped bonded.svg file has been copied from gnome-cards-data and has been
around for at least 10 years, author unknown. It is also GPL-licensed.