message: FAPL: unwrap the value in mdc_image_config()
diff: @@ -1588,8 +1588,8 @@ impl FileAccess {
  }
  #[cfg(hdf5_1_10_1)]
  - pub fn mdc_image_config(&self) -> Option<CacheImageConfig> {
  - self.get_mdc_image_config().ok()
  + pub fn mdc_image_config(&self) -> CacheImageConfig {
  + self.get_mdc_image_config().ok().unwrap_or_else(CacheImageConfig::default)
  }
  #[cfg(hdf5_1_10_0)]
  