[ember-qunit] Fixing typo in option types
[ember-qunit] Fixing typo in option types

georgemarshall/DefinitelyTyped,borisyankov/DefinitelyTyped,magny/DefinitelyTyped,dsebastien/DefinitelyTyped,mcliment/DefinitelyTyped,magny/DefinitelyTyped,georgemarshall/DefinitelyTyped,dsebastien/DefinitelyTyped,georgemarshall/DefinitelyTyped,georgemarshall/DefinitelyTyped,markogresak/DefinitelyTyped,borisyankov/DefinitelyTyped