This file is indexed.

/usr/share/doc/gmt-gshhs-low/copyright is in gmt-gshhs-low 2.2.0-2.

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

The actual contents of the file can be viewed below.

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This package was debianized by Torsten Landschoff <torsten@debian.org> on
Wed, 29 Sep 1999 18:04:12 +0200

The upstream source is available from 

	ftp://pahoehoe.soest.hawaii.edu/pub/gmt/	(main site)
	ftp://ftp.geologi.uio.no/pub/gmt/		(the mirror I used)

The main upstream authors are

	Paul Wessel <wessel@soest.hawaii.edu>
  and 	Walter Smith <wsmith@nodc.noaa.gov>

Copyright:

Copyright (c) 1991-2008, P. Wessel & W. H. F. Smith

This software is covered by the GNU Library General Public Licence
(version 2, or if you choose, a later version).

On Debian GNU/Linux systems, the complete text of the GNU General
Public License can be found in `/usr/share/common-licenses/GPL'. If 
you got the source archive you will find the license in the file COPYING 
in the top directory.