code: function(cb_) {
      common.log.out('Extracting ExoBrowser: ' + process.argv[3]);
      var tar = require('child_process').spawn('tar', 
        ['xfz', process.argv[3], 
         '-C', path.join(tmp_dist_path, '__AUTO_UPDATE_BUNDLE__', 'exo_browser'),
         '--strip', '1']);
      tar.stdout.on('data', function (data) {
        console.log('stdout: ' + data);
      });
      tar.stderr.on('data', function (data) {
        console.log('stderr: ' + data);
      });
      tar.on('close', function (code) {
        if(code !== 0) {
          return cb_(common.err('Extraction failed with code: ' + code,
                                'auto_updater:failed_extraction'));
  
        }
        return cb_();
      });
    }
docs: /* Extract exo_browser in dist path