message: neqo-client: --output-dir should not open the dir
  It should open the path WITHIN the dir.
diff: @@ -382,14 +382,14 @@ fn main() -> Res<()> {
  };
  out_path.push(url_path);
  - eprintln!("Saving {} to {:?}", url.clone().into_string(), dir);
  + eprintln!("Saving {} to {:?}", url.clone().into_string(), out_path);
  Some(
  OpenOptions::new()
  .write(true)
  .create(true)
  .truncate(true)
  - .open(&dir)?,
  + .open(&out_path)?,
  )
  } else {
  None
  