XFCE: disable window roll-up

Just in case someone's wondering if there's a way to disable windows rolling up on mouse wheel in XFCE: yes, there is. The following command disables the feature:

xfconf-query -c xfwm4 -p /general/mousewheel_rollup -s false

You'll need to update your XFCE to 4.8 if you've got an older version for it to work, though.