old_contents: var express = require('express');
  
  var app = express.createServer(express.logger());
  
  app.get('/', function(request, response) {
    response.send('nodejs/express');
  });
  
  var port = process.env.PORT || 5000;
  app.listen(port, function() {
    console.log("Listening on " + port);
  });
  
new_contents: var express = require('express');
  
  var app = express();
  
  app.get('/', function(request, response) {
    response.send('nodejs/express');
  });
  
  var port = process.env.PORT || 5000;
  app.listen(port, function() {
    console.log("Listening on " + port);
  });
  
subject: remove unnecessary logger from test app