Fix viewport size of UiList on hero selection

Source/DiabloUI/selhero.cpp

@@ -484,7 +484,7 @@ void selhero_List_Init()
 	}
 	vecSelHeroDlgItems.push_back(std::make_unique<UiListItem>(_("New Hero").c_str(), static_cast<int>(selhero_SaveCount)));
 
-	vecSelDlgItems.push_back(std::make_unique<UiList>(vecSelHeroDlgItems, 6, PANEL_LEFT + 265, (UI_OFFSET_Y + 256), 320, 26, UiFlags::AlignCenter | UiFlags::FontSize24 | UiFlags::ColorUiGold));
+	vecSelDlgItems.push_back(std::make_unique<UiList>(vecSelHeroDlgItems, std::min<int>(6, selhero_SaveCount + 1), PANEL_LEFT + 265, (UI_OFFSET_Y + 256), 320, 26, UiFlags::AlignCenter | UiFlags::FontSize24 | UiFlags::ColorUiGold));
 
 	SDL_Rect rect2 = { (Sint16)(PANEL_LEFT + 585), (Sint16)(UI_OFFSET_Y + 244), 25, 178 };
 	vecSelDlgItems.push_back(std::make_unique<UiScrollbar>(&ArtScrollBarBackground, &ArtScrollBarThumb, &ArtScrollBarArrow, rect2));