[Mimedefang] Seeing a lot of reaping

[Philip Prindeville]

I'm seeing a lot of the following messages:

...
Feb 10 10:51:38 mail mimedefang-multiplexor[27593]: Killing idle slave 0 
(pid 10777): New generation -- forcing reread of filter rules
Feb 10 10:55:51 mail mimedefang-multiplexor[27593]: Killing idle slave 1 
(pid 10791): New generation -- forcing reread of filter rules
Feb 10 10:58:55 mail mimedefang-multiplexor[27593]: Killing idle slave 0 
(pid 10800): New generation -- forcing reread of filter rules
Feb 10 11:00:11 mail mimedefang-multiplexor[27593]: Killing idle slave 1 
(pid 10810): New generation -- forcing reread of filter rules
Feb 10 11:17:17 mail mimedefang-multiplexor[27593]: Killing idle slave 0 
(pid 10822): New generation -- forcing reread of filter rules
Feb 10 11:17:37 mail mimedefang-multiplexor[27593]: Killing idle slave 1 
(pid 10830): New generation -- forcing reread of filter rules
Feb 10 11:19:21 mail mimedefang-multiplexor[27593]: Killing idle slave 0 
(pid 10902): New generation -- forcing reread of filter rules
Feb 10 11:24:19 mail mimedefang-multiplexor[27593]: Killing idle slave 1 
(pid 10906): New generation -- forcing reread of filter rules
Feb 10 11:24:34 mail mimedefang-multiplexor[27593]: Killing idle slave 0 
(pid 10912): New generation -- forcing reread of filter rules
Feb 10 11:33:00 mail mimedefang-multiplexor[27593]: Killing idle slave 1 
(pid 10921): New generation -- forcing reread of filter rules
Feb 10 11:38:10 mail mimedefang-multiplexor[27593]: Killing idle slave 0 
(pid 10925): New generation -- forcing reread of filter rules

Any idea why?  I don't remember changing anything significant lately.

-Philip