Copyright for dvhtool source package in Bionic

This package was debianized by Guido Guenther  on
Tue, 17 Oct 2000 00:14:57 +0200.

It was downloaded from oss.sgi.com's cvs repository. See README.Debian 
for details.

Upstream Author: Ralf Baechle 

Copyright: 

 You are free to distribute this software under the terms of the GNU General
 Public License. The full text of this license can be found in the file
 /usr/share/common-licenses/GPL