Copyright for kuvert source package in Bionic

This is kuvert, written and maintained by Alexander Zangerl 
on Sun, 21 Oct 2001 23:21:16 +1000.

The original source can always be found at:
	http://www.snafu.priv.at/kuvert/

Copyright (C) 1999-2017 Alexander Zangerl 

  This program is free software; you can redistribute it and/or modify
  it under the terms of the GNU General Public License version 2
  as published by the Free Software Foundation.

  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.

  You should have received a copy of the GNU General Public License with
  the Debian GNU/Linux distribution in file /usr/share/common-licenses/GPL-2;
  if not, write to the Free Software Foundation, Inc., 51 Franklin St,
  Fifth Floor, Boston, MA 02110-1301, USA.