Copyright for wzip source package in Xenial

This package was debianized by Andreas Franzen
 on Wed, 24 Dec 1997 09:50:58 +0100.

'wzip' is written for inclusion into the Debian GNU/Linux distribution.

This software is copyright (C) 1997 by Andreas Franzen

You are free to distribute this software under the terms of
the GNU General Public License.

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