fdo#39468 translate German comments

Change-Id: I37b5fe348d5e3f54d505b04951761b52ff13bd26
Reviewed-on: https://gerrit.libreoffice.org/13280
Reviewed-by: Caolán McNamara <caolanm@redhat.com>
Tested-by: Caolán McNamara <caolanm@redhat.com>