Remove dovecot logs

src/freedombone-logging

         sed -i 's|info_log_path =.*|info_log_path = /dev/null|g' /etc/dovecot/dovecot.conf
         sed -i 's|debug_log_path =.*|debug_log_path = /dev/null|g' /etc/dovecot/dovecot.conf
         shred -zu /var/log/mail.*
+        shred -zu /var/log/dovecot*
     fi
     if [ -d /etc/mysql ]; then
         if [ -d /var/log/mysql ]; then