message: reduce number of random chars generated.
diff: @@ -94,7 +94,7 @@ impl<'a> OutputKind<'a> {
  pub(super) fn file(path: &'a str, overwrite_if_exists: bool) -> Self {
  let collision_resistant_string = rand::thread_rng()
  .sample_iter(&Alphanumeric)
  - .take(64)
  + .take(5)
  .map(char::from)
  .collect::<String>();
  let extension = format!(".{}.tmp", &collision_resistant_string);
  