old_contents: // Load modules.
  var OAuthStrategy = require('passport-google-oauth1');
  var OAuth2Strategy = require('passport-google-oauth20')
  
  // Exports.
  exports.Strategy =
  exports.OAuthStrategy = OAuthStrategy;
  exports.OAuth2Strategy = OAuth2Strategy;
  
new_contents: // Load modules.
  var OAuthStrategy = require('passport-google-oauth1'),
      OAuth2Strategy = require('passport-google-oauth20');
  
  // Exports.
  exports.Strategy =
  exports.OAuthStrategy = OAuthStrategy;
  exports.OAuth2Strategy = OAuth2Strategy;
  
subject: add a semicolon in the end of line. I think it would be a good idea to omit var to match the "coding convention".