message: Make fake generator C++98 compatible.
diff: #include <string>
  std::string generateConfigFilename(std::string inputFileName) {
  - constexpr int EXT_LENGTH = 4;
  - constexpr const char* CONFIG_EXTENSION = ".cfg";
  + static const int EXT_LENGTH = 4;
  + static const char* CONFIG_EXTENSION = ".cfg";
  std::string configFilePath = inputFileName;
  if (configFilePath.length() > EXT_LENGTH) {
  int extPosition = configFilePath.length() - EXT_LENGTH;
  