def access_log(config, req, res)
      param = AccessLog::setup_params(config, req, res)
      @config[:AccessLog].each{|logger, fmt|
        logger << AccessLog::format(fmt+"\n", param)
      }
    end
def access_log(config, req, res)
      param = AccessLog::setup_params(config, req, res)
      @config[:AccessLog].each{|logger, fmt|
        logger << AccessLog::format(fmt+"\n", param)
      }
    end
Logs +req+ and +res+ in the access logs.  +config+ is used for the
 server name.