Copyright for xautolock source package in Focal

Format: https://www.debian.org/doc/packaging-manuals/copyright-format/1.0/
Upstream-Name: xautolock
Upstream-Contact: Michel Eyckmans 
Source: https://www.ibiblio.org/pub/Linux/X11/screensavers/

Files: *
License: GPL-2.0
    Versions 2.0 and above of xautolock can be redistributed and/or modified
    under the terms of version 2 of the GNU General Public License as published
    by the Free Software Foundation. The complete license is available as
    /usr/share/common-licenses/GPL-2 on your Debian system
    .
    Note that this General Public License does not permit incorporating version
    2.0 and above of xautolock into programs that are distributed under terms
    incompatible with those of the GNU General Public License. If this limitation
    is a problem for you, please consider using the earlier versions 1.7 to 1.15
    of xautolock (previously known as "patchlevel 7" to "patchlevel 15"). These
    earlier versions can be redistributed and/or modified under a simple "for
    non-commercial use" license. On demand, these earlier versions can also be
    made available under other conditions on a case by case basis.
    .
    This program is distributed 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.
Copyright:
    This is the Debian packaged version of xautolock.
    .
    Authors:
    Stefan De Troch 
    Michel Eyckmans  (current maintainer)
    .
    Copyright 1990, 1992-1999, 2001-2002 by Stefan De Troch and Michel Eyckmans
    .
    This package was put together by the following Debian maintainers:
    Michael Meskes 
    Frederic Lepied 
    Søren Boll Overgaard 
    Roland Stigge 
    .
    The sources can be obtained from:
    https://www.ibiblio.org/pub/Linux/X11/screensavers/