message: Remove empty comment in ListBox
diff: @@ -101,7 +101,7 @@ private:
  NAS2D::Color mHighlightText = NAS2D::Color::White; /**< Text Color for an item that is currently highlighted. */
  SelectionChangedCallback mSelectionChanged; /**< Callback for selection changed callback. */
  - Slider mSlider; /**< */
  + Slider mSlider;
  bool mSorted = false; /**< Flag indicating that all Items should be sorted. */
  };
  