Bug#384265: cyrus-common-2.2: other logcheck warnings

[Ross Boylan]

While I'm at it, here are 2 more messages that probably should be
screened out (each was originally a single line):

Aug 23 16:56:08 iron cyrus/imap[15676]: OTP unavailable because can't
read/write key database /etc/opiekeys: No such file or directory

Aug 23 16:57:32 iron cyrus/imap[15676]: Expunged 2 messages from
user.ross

The first one is ongoing; the second may be just since the latest
upgrade.

On the first one, a better approach would be to tell cyrus OTP is not in
use, but I haven't discovered any option that does so.

Ross