The full implementation depends on infra Task #2179
https://redmine.documentfoundation.org/issues/2179

revision1: change to https, per demand of #2179

Removed ellipsis
Code changed as suggested

Change call to pass BCP47 string, with language as fallback.
task #2179 will be reviewed accordingly.

Change-Id: I573542da0f394d7128faab0106df852d622c98b3
Reviewed-on: https://gerrit.libreoffice.org/34693Tested-by: Jenkins <ci@libreoffice.org>
Reviewed-by: Eike Rathke <erack@redhat.com>