Copyright for python-intbitset source package in Jammy

Format: https://www.debian.org/doc/packaging-manuals/copyright-format/1.0/
Upstream-Name: intbitset
Source: https://github.com/inveniosoftware/intbitset/

Files: *
Copyright: 2007-2016, CERN
           2007, Free Software Foundation, Inc. 
License: LGPL-3+

Files: debian/*
Copyright: 2017, Maximiliano Curia 
License: LGPL-3+

License: LGPL-3+
 See `/usr/share/common-licenses/LGPL-3`