fdo#39468 translate German comments

Change-Id: Ic385faed251970c0c686b099023af9efca10a121
Reviewed-on: https://gerrit.libreoffice.org/13040
Reviewed-by: Noel Grandin <noelgrandin@gmail.com>
Tested-by: Noel Grandin <noelgrandin@gmail.com>