title: How do Winston's log streams work?
body: <p>The <a href="https://github.com/flatiron/winston" rel="noreferrer">Winston</a> documentation has a section on <a href="https://github.com/flatiron/winston#streaming-logs" rel="noreferrer">streaming logs</a> which says:</p>
  
  <blockquote>
    <p>Streaming allows you to stream your logs back from your chosen
    transport.</p>
  </blockquote>
  
  <p>and gives the following code example:</p>
  
  <pre><code>//
  // Start at the end.
  //
  winston.stream({ start: -1 }).on('log', function(log) {
    console.log(log);
  });
  </code></pre>
  
  <p>My reading of this is that each new log message added would be output to the console. The <code>{start: -1}</code> config tells the stream to start at the end of the file, so only new log entries are output. I expect the following Node script would result in each existing line of the <code>test.log</code> file being output to the console, and then a new object to be output every 500ms thereafter.</p>
  
  <pre><code>var winston = require('winston');
  winston.add(winston.transports.File, {
      filename: 'test.log'
  });
  winston.remove(winston.transports.Console);
  winston.stream().on('log', function(log) {
      console.log(log);
  });
  
  setInterval(function(){
      winston.log('info', 'help');
  }, 500);
  </code></pre>
  
  <p>I would expect to see something like the following output:</p>
  
  <pre><code>{"level":"info","message":"help","timestamp":"2013-12-10T05:55:15.806Z"}
  {"level":"info","message":"help","timestamp":"2013-12-10T05:55:16.307Z"}
  {"level":"info","message":"help","timestamp":"2013-12-10T05:55:16.809Z"}
  {"level":"info","message":"help","timestamp":"2013-12-10T05:55:17.309Z"}
  {"level":"info","message":"help","timestamp":"2013-12-10T05:56:48.316Z"}
  </code></pre>
  
  <p>What actually occurs is that the logging works as expected with the File transport (the file gets a new log entry every 500ms) but there is no output to the console. The <code>console.log(log)</code> line is never called. </p>
  
  <p>Have I missed something obvious, or misunderstood the purpose of Winston's log streams? </p>