Fixes Bug 1032030, hint errors in build/test/integration/build.test.js r=yurenju

for line 569~572, we still can add a break between key and value to be more readable.

```js
var expectedSettings = {
  'homescreen.manifestURL':
    'app://verticalhome.gaiamobile.org/manifest.webapp',
  'rocketbar.searchAppURL':
    'app://search.gaiamobile.org/index.html'
};
```