fix syntax error in angular.mock documentation


![screen shot 2013-09-27 at 3 40 51 pm](https://f.cloud.github.com/assets/909156/1228878/c48a3f68-27ac-11e3-9191-24459efbf943.png)
Fixing documentation for the angular.mock.inject api as seen on http://docs.angularjs.org/api/angular.mock.inject
Line 30 in the attached screenshot should contain a bracket to properly end the function.