message: Additional clippy feedback
diff: @@ -39,7 +39,7 @@ pub(crate) fn parse_control_op<R: BufRead>(mut reader: R) -> io::Result<ControlO
  match r {
  Ok((input, (op, args))) => Some((input, start_len, (op, args))),
  Err(Incomplete(_)) => None,
  - _ => return Err(parse_error()),
  + Err(nom::Err::Error(_)) | Err(nom::Err::Failure(_)) => return Err(parse_error()),
  }
  } {
  (input, start_len, (op, args))
  