Copyright for nbd source package in Focal

This package was debianized by Wouter Verhelst  on
Sat,  5 May 2001 12:24:33 +0200.

It was downloaded from
http://atrey.karlin.mff.cuni.cz/~pavel/nbd/nbd.html

Upstream Author: Pavel Machek 

Recent versions of the nbd tools, however, are available through
SourceForge, at http://sourceforge.net/projects/nbd/, and are now
maintained by Wouter Verhelst.

Copyright:

  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
  MERCHANDABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  General Public License for details.

  You should have received a copy of the GNU General Public License
  along with this program;  if not, write to the Free Software
  Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301 USA

On Debian GNU/Linux systems, the complete text of the GNU General
Public License, version 2, can be found in `/usr/share/common-licenses/GPL-2'.