docs: function LogFileTee(filename, stream2) {
  	var streams = [fs.createWriteStream(path.resolve(filename))];
  	if (stream2 === undefined) {
  		streams.push(process.stdout);
  	} else if (stream2 !== null) {
  		streams.push(stream2);
  	}
  	LogTee.call(this, streams);
  	this.logfile = filename;
  }