Copyright for net-tools source package in Yangtze V1.0

Format: https://www.debian.org/doc/packaging-manuals/copyright-format/1.0/
Upstream-Name: net-tools
Upstream-Contact: Phil Blundell 
                  Bernd Eckenfels 
Source: http://sourceforge.net/projects/net-tools/

Files: *
Copyright: © 1988-1994 MicroWalt Corporation
 © 1995-1996 Bernd Eckenfels
 © 1997-2000 Andi Kleen
 © 1997-2000 Donald Becker
License: GPL-2+

Files: debian/*
Copyright: © 2008-2009 Luk Claes, Martín Ferrari
 © 2000-2007 Bernd Eckenfels
 © 2000 Anthony Towns
License: GPL-2+
Comment:
 It is assumed that all contributors put their work under the same license
 as the module itself.

Files: debian/iptunnel.8
Copyright: © 2018 Sergio Durigan Junior
License: GPL-2+

License: GPL-2+
 The copyright attribution has been derived from individual files' text, but
 each file may have different copyright holders, and some may be missing. See
 the source code for details.
 .
 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.
 .
 On Debian GNU/Linux systems, the complete text of the GNU General Public
 License can be found in `/usr/share/common-licenses/GPL-2'