idea originally from either tml or moggi, can't remember which

Change-Id: Id78d75035036d3aa1666e33469c6eeb38f9e624d
Reviewed-on: https://gerrit.libreoffice.org/55126Tested-by: Jenkins <ci@libreoffice.org>
Reviewed-by: Noel Grandin <noel.grandin@collabora.co.uk>