code: function audit(err, req, res) {
      req.headers = req._headers;
      req.url = req.path;
      var log = req.log;
  
      var obj = {
          remoteAddress: req.connection.remoteAddress,
          remotePort: req.connection.remotePort,
          req: req,
          res: res,
          err: err,
          secure: req.secure
      };
  
      log.info(obj);
  }
docs: Audits the req/res for the client. The audit will use bunyan's
  formatters. See bunyan-format for the user-friendly output.
  
  @param  {Object} err   The http error object.
  @param  {Object} req   The http request object.
  @param  {Object} res   The http response object.
  
  @returns {undefined} Does not return anything.