remove trailing whitespaces ❤️

spec/controllers/notifications_controller_spec.rb

@@ -5,7 +5,7 @@ describe NotificationsController do
   context 'when logged in' do
     let!(:user) { log_in }
 
-    before do    
+    before do
       xhr :get, :index
     end
 
@@ -16,7 +16,7 @@ describe NotificationsController do
   context 'when not logged in' do
     it 'should raise an error' do
       lambda { xhr :get, :index }.should raise_error(Discourse::NotLoggedIn)
-    end    
+    end
   end
 
 end