warning: biff_notify: Invalid argument

[Dan Langille]

I regularly see this message in /var/log/messages in a jail I'm running.
It appears on no other machine:

   warning: biff_notify: Invalid argument

It is annoying more than anything.  I'd like to get rid of it, but I can't
see how.

After reading man biff, I checked all the .login and .profile files I
could find (there are only three users in the jail).  I also grepped
entire home directories, but found nothing calling biff.

Any ideas?

-- 
Dan Langille - BSDCan: http://www.bsdcan.org/