message: Use `auto` for function result
diff: @@ -186,7 +186,7 @@ void TechnologyCatalog::readCategories(NAS2D::Xml::XmlElement& node)
  for (auto category = &node; category; category = category->nextSiblingElement())
  {
  const auto attributes = NAS2D::attributesToDictionary(*category);
  - const std::string name = attributes.get("name");
  + const auto name = attributes.get("name");
  auto it = mCategories.find(name);
  if (it != mCategories.end())
  