warn about exotic protocols as well

warn about exotic protocols as well

Change-Id: I50dcf4f36cd20d75f5ad3876353143268740a50f
Reviewed-on: https://gerrit.libreoffice.org/c/core/+/151834
Tested-by: Jenkins
Reviewed-by: Caolán McNamara <caolan.mcnamara@collabora.com>
(cherry picked from commit 1305f70cff8a81a58a5a6d9c96c5bb032005389e)
Reviewed-on: https://gerrit.libreoffice.org/c/core/+/159034
Reviewed-by: Eike Rathke <erack@redhat.com>
(cherry picked from commit 2e1bcbb550d54278b366ec619cc5280d44d6aba4)

Gbp-Pq: Name warn-about-exotic-protocols-as-well.diff