変更部分だけ抜粋。あとはデフォルトで。
LogFile /var/log/clamd.log LogFileMaxSize 2M LogTime yes LogClean yes PidFile /usr/local/var/run/clamd.pid LocalSocket /tmp/clamd.socket
同じく変更部分のみ。
UpdateLogFile /var/log/freshclam.log LogFileMaxSize 2M LogTime yes LogVerbose yes PidFile /usr/local/var/run/freshclam.pid DatabaseMirror database.clamav.net