instead of a mix of short/sal_uLong/sal_uInt32

Change-Id: Ie5bd26e1a6f716c0c4e174a6d560827084b3f421
Reviewed-on: https://gerrit.libreoffice.org/45159Tested-by: Jenkins <ci@libreoffice.org>
Reviewed-by: Noel Grandin <noel.grandin@collabora.co.uk>