+ use loop ranges

Change-Id: I0ae81e3c10a6382d3f5719b2824a70d6e72b1462
Reviewed-on: https://gerrit.libreoffice.org/44169Reviewed-by: Noel Grandin <noel.grandin@collabora.co.uk>
Tested-by: Jenkins <ci@libreoffice.org>
Reviewed-by: Julien Nabet <serval2412@yahoo.fr>