tweak code to avoid double border between Menu and parent !MenuBar/!ComboBox, refs #10527
tweak code to avoid double border between Menu and parent !MenuBar/!ComboBox, refs #10527

git-svn-id: 674a2d6b1e32e53f607eb824547723f32280967e@22286 560b804f-0ae3-0310-86f3-f6aa0a117693

redaktor/deliteful