fdo#39468 translate German comments

Change-Id: Ic91caa9268ea2be860acaa47ff45a4a5789a371c
Reviewed-on: https://gerrit.libreoffice.org/13321
Reviewed-by: Caolán McNamara <caolanm@redhat.com>
Tested-by: Caolán McNamara <caolanm@redhat.com>