kfll/passport-sina — pull request #3 by wcp1231 (2014-09-19 08:32:28+00:00)
Title: fixbug: object is not a function

直接 `new passport_sina({...})` 报错，应该直接导出 Strategy 构造函数

应该是上一个 pull requests 留下的 bug

原本
```js
var strategy = exports.Strategy = module.exports = function(options, verify) {...}
```

变成了
```js
exports.Strategy = Strategy;
```

少了 `module.exports`