requried warnings don't seem to be working

[Bettilyon, Allen]

Hello,

I'm trying to use cfengine to warn me if key local disk points fill up. 
I'm using the required directive, and it looks like this:

required:

   any::
        /       freespace=25%
        /var    freespace=25% 
        /home   freespace=25%



However, it doesn't seem to be doing anything.  I forcibly filled /var
to over 80% on one my servers, and I've never seen any warnings issued. 
I've also tried doing:

        /var    freespace=25% define=var_almost_full

        ....

        shellcommands:

           var_almost_full::
                "/bin/echo var is almost full"


And still, never saw the shellcommand run.


I am running the latest 2.0.4 release on linux.

- Allen