The default value changed between MSO 2007 and 2010 so we need to always write the value.

Change-Id: I563eafa84baa3df656c83d657ebbb4c381c09957
Reviewed-on: https://gerrit.libreoffice.org/29420Reviewed-by: Markus Mohrhard <markus.mohrhard@googlemail.com>
Tested-by: Jenkins <ci@libreoffice.org>