/usr/share/doc/ltsp-cluster-agent/copyright is in ltsp-cluster-agent 0.8-1ubuntu1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
| 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 | This package was debianized by Stéphane Graber
<stgraber@ubuntu.com> on Thu Nov  4 10:24:56 EDT 2010
It was downloaded from https://launchpad.net/ltsp-cluster/+download
Upstream Authors:
    Stéphane Graber <stgraber@ubuntu.com>
    Vincent Vinet <vincent.vinet@revolutionlinux.com>
Copyright: 
    Copyright (C) 2009-2010 Revolution Linux Inc.
License:
    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.
    You can find the license on Debian systems in the file
    /usr/share/common-licenses/GPL-2
The Debian packaging is Copyright 2010, Stéphane Graber
<stgraber@ubuntu.com> and is licensed under the GPL,
see `/usr/share/common-licenses/GPL-2'.
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