f - fix nonce calculation

Author: jkczyz

lightning/src/offers/merkle.rs

@@ -25,7 +25,7 @@ fn root_hash(data: &[u8]) -> sha256::Hash {
 	let nonce_tag = tagged_hash_engine(sha256::Hash::from_engine({
 		let mut engine = sha256::Hash::engine();
 		engine.input("LnNonce".as_bytes());
-		engine.input(tlv_stream.peek().unwrap().type_bytes);
+		engine.input(tlv_stream.peek().unwrap().data);
 		engine
 	}));
 	let leaf_tag = tagged_hash_engine(sha256::Hash::hash("LnLeaf".as_bytes()));