message: core: freeze cache directory prefix - "4.x"
diff: @@ -503,7 +503,7 @@ cv::String getCacheDirectory(const char* sub_directory_name, const char* configu
  if (utils::fs::isDirectory(default_cache_path))
  {
  cv::String default_cache_path_base = utils::fs::join(default_cache_path, "opencv");
  - default_cache_path = utils::fs::join(default_cache_path_base, CVAUX_STR(CV_VERSION_MAJOR) "." CVAUX_STR(CV_VERSION_MINOR) CV_VERSION_STATUS);
  + default_cache_path = utils::fs::join(default_cache_path_base, "4.x" CV_VERSION_STATUS);
  if (utils::getConfigurationParameterBool("OPENCV_CACHE_SHOW_CLEANUP_MESSAGE", true)
  && !utils::fs::isDirectory(default_cache_path))
  {
  