This file is indexed.

/usr/share/doc/syslog-summary/copyright is in syslog-summary 1.14-2.1.

This file is owned by root:root, with mode 0o644.

The actual contents of the file can be viewed below.

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Source: http://sourceforge.net/projects/syslog-summary

Files: debian/*
Copyright: © 2008, David Paleino <d.paleino@gmail.com>
           © 2001-2007, Tommi Virtanen <tv@debian.org>
           © 1998-2000, Lars Wirzenius <liw@iki.fi>
License: GPL-3+
 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 3 of the License, or
 (at your option) any later version.

Files: *
Copyright: © 2008, David Paleino <d.paleino@gmail.com>
           © 2001-2007, Tommi Virtanen <tv@debian.org>
           © 1998-2000, Lars Wirzenius <liw@iki.fi>
License: GPL-3+

On a Debian system, the complete text of the licenses can be found in:
GPL - `/usr/share/common-licenses/GPL'