message: rustfmt fixes
diff: @@ -2,14 +2,14 @@ use std::convert::{TryFrom, TryInto};
  use std::str::FromStr;
  use forest_address::{Address, Network};
  -use forest_cid::{Cid, Code::Identity, multihash::MultihashDigest};
  +use forest_cid::{multihash::MultihashDigest, Cid, Code::Identity};
  use forest_crypto::signature;
  use forest_message::{Message, SignedMessage, UnsignedMessage};
  use forest_vm::Serialized;
  use num_bigint_chainsafe::BigInt;
  use serde::{Deserialize, Serialize, Serializer};
  -use extras::{ExecParams, multisig, paych};
  +use extras::{multisig, paych, ExecParams};
  use crate::error::SignerError;
  use crate::signature::Signature;
  