code: function showVersion(){
    var jshint_proc = fork(__dirname + '/node_modules/jshint/bin/jshint', ['-v'], {silent: true});
    var ts = through(function write(chunk){
      this.queue("JSXHint v" + require('./package.json').version + " (" +
        chunk.toString().replace("\n", "") + ")\n");
    });
    jshint_proc.stderr.pipe(ts).pipe(process.stderr);
  }
docs: Intercept -v, shows jsxhint and jshint versions.