scripting: modify astyle.options

Change-Id: I0e5fb63e2c632890e774b59e6808907067c87ce6
Reviewed-on: https://gerrit.libreoffice.org/11643
Reviewed-by: Caolán McNamara <caolanm@redhat.com>
Tested-by: Caolán McNamara <caolanm@redhat.com>