old_contents: 'use strict';
  
  /**
   * Simple wrapper for 'Error' to provide a HTTP status code.
   */
  module.exports = function(status, message) {
  	if(message instanceof Error) {
  		message.status = status;
  		return message;
  	}
  	var error        = new Error(message);
  	    error.status = status;
  	return error;
  }
  
new_contents: 'use strict';
  
  /**
   * Simple utility that enhances the given error with a 'status' field.
   *
   * @param  {Number}          status   HTTP status code.
   * @param  {(String|Error)}  message  Message describing the error, can also be
   *                                    an instance of Error.
   *
   * @returns  {Error}  Error object enhanced with a 'status'.
   */
  module.exports = function(status, message) {
  	if(message instanceof Error) {
  		message.status = status;
  		return message;
  	}
  	var error        = new Error(message);
  	    error.status = status;
  	return error;
  }
  
subject: Add documentation for 'utils/error'.