to make the assumption about the size of the array obvious in the code.

Change-Id: I7ebe0b037e3be38f7e33c0160742f829288bb474
Reviewed-on: https://gerrit.libreoffice.org/49938Tested-by: Jenkins <ci@libreoffice.org>
Reviewed-by: Noel Grandin <noel.grandin@collabora.co.uk>