Copyright for dune-grid-glue source package in Focal

Format: https://www.debian.org/doc/packaging-manuals/copyright-format/1.0/
Upstream-Name: dune-grid-glue
Source: https://www.dune-project.org/modules/dune-grid-glue/

Files: *
Copyright:
 2014-2017  Ansgar Burchardt
 2009       Gerrit Buse
 2009-2016  Christian Engwer
 2014       Christoph Grüninger
 2014-2016  Katja Hanowski
 2013       Steffen Müthing
 2016       Elias Pipping
 2009-2017  Oliver Sander
 2014-2017  Jonathan Youett
License: GPL-2+ with dune-grid-glue exception or LGPL-3+

Files: debian/*
Copyright: 2014-2017, Ansgar Burchardt 
License: GPL-2+ with dune-grid-glue exception or LGPL-3+

License: GPL-2+ with dune-grid-glue exception
 Version 2 of the GNU General Public License as published by the Free Software
 Foundation, with the following special exception for linking and compiling
 against the dune-grid-glue library, the so-called "runtime exception":
 .
   As a special exception, you may use the dune-grid-glue source files as part
   of a software library or application without restriction.  Specifically, if
   other files instantiate templates or use macros or inline functions from
   one or more of the dune-grid-glue source files, or you compile one or more
   of the dune-grid-glue source files and link them with other files to
   produce an executable, this does not by itself cause the resulting
   executable to be covered by the GNU General Public License.
   This exception does not however invalidate any other reasons why the
   executable file might be covered by the GNU General Public License.
 .
 This license is intended to be similar to the GNU Lesser General Public
 License, Version 2, which by itself isn't suitable for a template library. You
 can find a copy of the GNU General Public License, Version 2,
 at .
 .
 On Debian systems, the full text of the GNU General Public License version 2
 can be found in the file `/usr/share/common-licenses/GPL-2'.

License: LGPL-3+
 The GNU Lesser General Public License as published by the Free Software
 Foundation, either Version 3 of the license or (at your option) any later
 version. You can find a copy of the GNU Lesser General Public License,
 Version 3, at .
 .
 On Debian systems, the full text of the GNU Lesser General Public License
 version 3 can be found in the file `/usr/share/common-licenses/LGPL-3'.