I recently installed packages clamav, clamav-base and clamav-freshclam, but not clamav-daemon. Whenever freshclam (running from /etc/cron.d/clamav-freshclam) updates the database, it mails me an error message: "ERROR: Clamd was NOT notified: Can't find or parse configuration file /etc/clamav/clamav.conf". Is /etc/clamav.conf required only if running the daemon?