strange entropy (or cron) message

[nospam at apriori.net]

Greetings -

I have an installation of 5.3 that I am enjoying, but the root mailbox is
filling up with strange messages regarding a "save-entropy" thing:

-------------------------------------------
Date: Sun, 27 Nov 2005 20:11:00 -0500 (EST)
From: Cron Daemon <operator at ...>
To: operator at ...
Subject: Cron <operator at ...> /usr/libexec/save-entropy

5 : not found
-------------------------------------------

I have noticed that while still at the command line, the number "5"
sporadically appears in the boot messages; the system responds with the
equivalent of "don't know what that's for..." message.

Anyone have a suggestion about what this is and how I should fix it? Thank
you.

-- paz