message: remove unnecessary &
diff: @@ -15,8 +15,8 @@ impl BitXor for BigUint {
  // Pad to equal size in bytes
  let bytes1 = input1.to_bytes_le().len();
  let bytes2 = input2.to_bytes_le().len();
  - let in1 = vectorize(&input1, bytes2);
  - let in2 = vectorize(&input2, bytes1);
  + let in1 = vectorize(input1, bytes2);
  + let in2 = vectorize(input2, bytes1);
  BigUint::from_bytes_le(
  &in1.iter()
  .zip(in2.iter())
  