Copyright for cudf source package in Bullseye

Format: https://www.debian.org/doc/packaging-manuals/copyright-format/1.0/
Upstream-Name: cudf
Upstream-Contact: Stefano Zacchiroli 
Source: http://www.mancoosi.org/cudf/

Files: *
Copyright: 2009-2012 Stefano Zacchiroli 
License: LGPL-3+-linking-exception
 This library is free software: you can redistribute it and/or modify
 it under the terms of 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.
 .
 On Debian systems, the full text of the license can be found in
 `/usr/share/common-licenses/LGPL-3'.
 .
 As a special exception to the GNU Lesser General Public License, you
 may link, statically or dynamically, a "work that uses the Library"
 with a publicly distributed version of the Library to produce an
 executable file containing portions of the Library, and distribute
 that executable file under terms of your choice, without any of the
 additional requirements listed in clause 6 of the GNU Lesser General
 Public License.  By "a publicly distributed version of the Library",
 we mean either the unmodified Library as distributed, or a modified
 version of the Library that is distributed under the conditions
 defined in clause 3 of the GNU Lesser General Public License.  This
 exception does not however invalidate any other reasons why the
 executable file might be covered by the GNU Lesser General Public
 License.