message: get the result of sha3 and feed blake2b
diff: @@ -203,7 +203,7 @@ impl DigestBlake2b {
  let mut sh3 = Sha3::sha3_256();
  let mut outv = [0;32];
  sh3.input(buf);
  - sh3.output(&mut outv);
  + sh3.result(&mut outv);
  b2b.input(&outv);
  b2b.result(&mut outv);
  DigestBlake2b::from_bytes(outv)
  