converted crypto::hash::Hash::fmt to use pretty_hash::fmt

Author: FreddieRidell

src/crypto/hash.rs

@@ -1,10 +1,11 @@
 pub use blake2_rfc::blake2b::Blake2bResult;
 
-use crate::storage::Node;
 use blake2_rfc::blake2b::Blake2b;
 use byteorder::{BigEndian, WriteBytesExt};
+use crate::storage::Node;
 // use ed25519_dalek::PublicKey;
 use merkle_tree_stream::Node as NodeTrait;
+use pretty_hash::fmt as pretty_fmt;
 use std::convert::AsRef;
 use std::fmt;
 use std::mem;
@@ -141,8 +142,9 @@ impl DerefMut for Hash {
 }
 
 impl fmt::Display for Hash {
+
   fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
-    write!(f, "{:x?}", self.hash)
+      write!(f, "{}", pretty_fmt(&self.hash[..]).unwrap())
   }
 }