fix syntax error in angular.mock documentation

[rcullito]

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.

[mary-poppins]

Thanks for the PR!

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Thanks again for your help!

[rcullito]

Robert Culliton

[petebacondarwin]

Thanks