Copyright for rcs source package in Jammy

This is Debian's prepackaged version of the GNU Project's Revision
Control System (RCS) utilities. These utilities allow you to keep
multiple revisions of one or more files in a very compact manner. RCS is
similar to, and in most respects better than, the non-free Source Code
Control System (SCCS).

This package was assembled by Sven Rudolph 
from the GNU sources available from prep.ai.mit.edu (and its numerous
mirrors) as /pub/gnu/rcs-5.7.tar.gz. It is currently maintained by
Romain Francoise .

The upstream URL is: http://www.gnu.org/software/rcs/

Copyright (C) 2010-2012 Thien-Thi Nguyen
Copyright (C) 1990-1995 Paul Eggert
Copyright (C) 1982,1988,1989 Walter F. Tichy, Purdue CS

RCS 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, or (at your option)
any later version.

RCS 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.

The RCS manual is distributed under the GNU Free Documentation License
version 1.3 or later, with no invariant Sections, with no front-cover
texts, and with no back-cover texts.

The RCS source distribution also includes several gnulib modules, which
are also licensed under the GPL version 3 or later, and are:

Copyright 1990-2012 Free Software Foundation, Inc.

On Debian systems, the complete text of the GNU General Public License
can be found in `/usr/share/common-licenses/GPL-3'.

The complete text of the GNU Free Documentation License can be found in
`/usr/share/common-licenses/GFDL-1.3'.