message: Initialize mLineHeight in constructor init list
diff: @@ -17,7 +17,8 @@ using namespace NAS2D;
  ListBox::ListBox() :
  - mFont{fontCache.load(constants::FONT_PRIMARY, constants::FONT_PRIMARY_NORMAL)}
  + mFont{fontCache.load(constants::FONT_PRIMARY, constants::FONT_PRIMARY_NORMAL)},
  + mLineHeight{static_cast<unsigned int>(mFont.height() + constants::MARGIN_TIGHT)}
  {
  Utility<EventHandler>::get().mouseButtonDown().connect(this, &ListBox::onMouseDown);
  Utility<EventHandler>::get().mouseMotion().connect(this, &ListBox::onMouseMove);
  @@ -29,7 +30,6 @@ ListBox::ListBox() :
  mSlider.change().connect(this, &ListBox::slideChanged);
  _updateItemDisplay();
  - mLineHeight = static_cast<unsigned int>(mFont.height() + constants::MARGIN_TIGHT);
  _updateItemDisplay();
  }
  