almost completely automatically rewritten, only had to tweak
the indentation on a couple of lines.

Change-Id: Ieec92e5b602d180d7ec556e3421ce3c835c1f646
Reviewed-on: https://gerrit.libreoffice.org/45072Reviewed-by: Noel Grandin <noel.grandin@collabora.co.uk>
Tested-by: Noel Grandin <noel.grandin@collabora.co.uk>