Copyright for gimp-dcraw source package in Focal

Format: http://www.debian.org/doc/packaging-manuals/copyright-format/1.0/
Upstream-Name: gimp-dcraw
Upstream-Contact: Dave Coffin at cybercom dot net
Source: http://www.cybercom.net/~dcoffin/dcraw/rawphoto.c

Files: *
Copyright: 2003-2008 Dave Coffin
License: gimp

Files debian/*
Copyright: 2004-2008 Steve King 
           2009 David Paleino 
           2016 Tobias Frost 
License: gimp

License: gimp
 This code is licensed under the same terms as The GIMP.
 i.e. It may be redistributed under the terms of the GNU GPL, Version 2 or
 later, found on Debian systems in the file /usr/share/common-licenses/GPL-2