message: Parenthesizing to state the arithmetic operation clearly.
diff: @@ -595,7 +595,7 @@ impl Frame {
  FRAME_TYPE_CRYPTO => {
  let o = dv!(dec);
  let l = dv!(dec);
  - if (o + l) > (1 << 62 - 1) {
  + if (o + l) > ((1 << 62) - 1) {
  return Err(Error::FrameEncodingError);
  }
  let len = Some(l);
  @@ -624,7 +624,7 @@ impl Frame {
  qtrace!("STREAM frame, with length");
  let l = dv!(dec);
  - if (o + l) > (1 << 62 - 1) {
  + if (o + l) > ((1 << 62) - 1) {
  return Err(Error::FrameEncodingError);
  }
  let len = Some(l);
  