title: NodeJS child process stdout are all numbers
body: <p>I'm writing some node.js scripts to kick off a child process. Code snippet is as below. </p>
  
  <pre><code>var spawn = require('child_process').spawn; 
  var child = spawn ('node', ['script.js'])
  
  child.stdout.on('data', 
      function (data) {
          logger.verbose('tail output: ' + JSON.stringify(data));
      }
  );
  
  child.stderr.on('data',
      function (data) {
          logger.error('err data: ' + data);
      }
  );
  </code></pre>
  
  <p>Script runs well except that child process's stdout and stderr prints only numeric outputs: </p>
  
  <p>Sample output: </p>
  
  <pre><code>   108,34,44,34,105,110,99,114,101,97,109,101,110,116,97,108,95,112,111,108,108,105
  </code></pre>
  
  <p>How do I convert these numeric values to readable string? </p>
  
  <p>Thanks. </p>