[Mimedefang] -k option not being passed from FreeBSD rc.d script?

[Graham Dunn]

I'm in the midst of trying to debug a clamd zip failure

Dec  9 09:26:36 ureshii mimedefang.pl[73455]: iB9EQaSe031074: Clamd 
returned error: 
/var/spool/MIMEDefang/mdefang-iB9EQaSe031074/Work/msg-73455-357.zip: Zip 
module failure

and have enabled

KEEP_FAILED_DIRECTORIES=yes

in rc.d/mimdefang.sh

however, these directories are still being cleaned out after the clamd 
failure. Is there an easy way to check what parameters are being passed? 
I doubt that it's a problem in the rc file, but I'd like to rule that 
out ...

mimedefang-2.48
ClamAV devel-20041129/623/Thu Dec  9 08:47:37 2004
FreeBSD 5.3-RELEASE

Thanks,
Graham