reference-language also added to token list

Change-Id: I32713508d3611dc2bce10b2c5abb1e1a4167bdaf
Reviewed-on: https://gerrit.libreoffice.org/52561Tested-by: Jenkins <ci@libreoffice.org>
Reviewed-by: Miklos Vajna <vmiklos@collabora.co.uk>