message: error message vector check
diff: @@ -50,6 +50,7 @@ namespace vcpkg
  void print_error_message(std::vector<ParseControlErrorInfo> error_info_list)
  {
  + if (error_info_list.size() == 0) return;
  for (ParseControlErrorInfo error_info : error_info_list)
  {
  System::println(
  