Copyright for ocaml-re source package in Bionic

Format: http://www.debian.org/doc/packaging-manuals/copyright-format/1.0/
Source: https://github.com/ocaml/ocaml-re

Files: *
Copyright: © 2001 Jerome Vouillon
License: LGPL-2.1

Files: lib/re_str.ml*
Copyright: © 1996 Copyright 1996 Institut National de Recherche en Informatique et en Automatique
License: LGPL-2.1

Files: debian/*
Copyright: © 2012 Mehdi Dogguy 
License: LGPL-2.1

License: LGPL-2.1
 The Debian packaging is licensed under the LGPL-2.1, see
 `/usr/share/common-licenses/LGPL-2.1'.