Copyright for mysql-defaults source package in Focal

Format: https://www.debian.org/doc/packaging-manuals/copyright-format/1.0/

Files: debian/*
Copyright:
 1997-1998, Scott Hanson 
 1997, Christian Schwarz 
 1999-2007, 2009, Christian Hammers 
 2000-2001, Christopher C. Chimelis 
 2001, Matthew Wilcox 
 2005-2007, sean finney 
 2006, Adam Conrad 
 2007-2011, Norbert Tretkowski 
 2007-2008, Monty Taylor 
 2008, Devin Carraway 
 2008, Steffen Joeris 
 2009, Canonical Ltd
 2010, Xavier Oswald 
 2011, Clint Byrum 
 2011, Ondřej Surý 
 2012, Nicholas Bamber 
 2013-2014, Otto Kekäläinen 
 2016-2018, Andreas Beckmann 
License: GPL-2+

Files: doc/*
Copyright:
 2018, Canonical Ltd
License: GPL-2+

License: GPL-2+
 This package 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.
 .
 This package 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.
 .
 You should have received a copy of the GNU General Public License
 along with this program. If not, see 
 .
 On Debian systems, the complete text of the GNU General
 Public License version 2 can be found in "/usr/share/common-licenses/GPL-2".