message: CWStringView->CStringView, std::wstring->std::string
diff: @@ -366,9 +366,7 @@ namespace vcpkg::System
  return Strings::to_utf8(ret);
  }
  #else
  - Optional<std::wstring> get_registry_string(void* base_hkey,
  - const CWStringView sub_key,
  - const CWStringView valuename)
  + Optional<std::string> get_registry_string(void* base_hkey, const CStringView sub_key, const CStringView valuename)
  {
  return nullopt;
  }
  