As required by [MS-VBAL], and actual VBA implementation.
It is a question if we also need to change it likewise in other
modes (normal, compatible) - see tdf#150460.
Change-Id: I1e83d57fe4be3bf264a64fe977909cf7684bc798
Reviewed-on: https://gerrit.libreoffice.org/c/core/+/172005
Tested-by: Jenkins
Reviewed-by: Mike Kaganski <mike.kaganski@collabora.com>
