Fixing trailing whitespace and other linter errors

Fixing a single trailing whitespace issue.
Fixing no new line at the end of the file.

qa/qa/specs/features/browser_ui/3_create/merge_request/create_merge_request_spec.rb

@@ -25,7 +25,7 @@ module QA
         Page::MergeRequest::Show.perform do |merge_request|
           expect(merge_request).to have_title(@merge_request_title)
           expect(merge_request).to have_description(@merge_request_description)
-        end        
+        end
       end
 
       it 'creates a merge request with a milestone and label' do
@@ -63,4 +63,4 @@ module QA
       end
     end
   end
-end
\ No newline at end of file
+end