Remove trailing whitespaces from test (#31506).

Patch by Marius BALTEANU.


git-svn-id: http://svn.redmine.org/redmine/trunk@18233 e93f8b46-1217-0410-a6f0-8f06a7374b81

test/unit/lib/redmine/menu_manager/menu_helper_test.rb

@@ -211,7 +211,7 @@ class Redmine::MenuManager::MenuHelperTest < Redmine::HelperTest
       end
     end
   end
- 
+
   def test_render_empty_virtual_menu_node_with_children
 
     # only empty item with no click target