Frost reuse message in test and some docs grammar (#123)

reuse message and some doc grammar

schnorr_fun/src/frost.rs

@@ -75,7 +75,7 @@
 //! #    )
 //! #    .unwrap();
 //! // signing parties must use a common set of nonces when creating signature shares.
-//! // nonces can be derived from a session id that use includes publicly known values.
+//! // nonces can be derived from a session id which is created from publicly known values.
 //! let verification_shares_bytes: Vec<_> = frost_key
 //!     .verification_shares()
 //!     .map(|share| share.to_bytes())
@@ -501,7 +501,7 @@ impl XOnlyFrostKey {
     ///
     /// ## Return value
     ///
-    /// A point (normalised to have an even Y coordinate).
+    /// A point (normalized to have an even Y coordinate).
     pub fn public_key(&self) -> Point<EvenY> {
         self.public_key
     }
@@ -1141,10 +1141,11 @@ mod test {
                 received_nonces.push((*i, nonce.public()));
             }
 
+            let message = Message::plain("test", b"test");
             let signing_session = frost.start_sign_session(
                 &frost_keys[signer_indexes[0]],
                 received_nonces.clone(),
-                Message::plain("test", b"test")
+                message
             );
 
             let mut signatures = vec![];
@@ -1153,7 +1154,7 @@ mod test {
                 let session = frost.start_sign_session(
                     &frost_keys[signer_index],
                     received_nonces.clone(),
-                    Message::plain("test", b"test")
+                    message
                 );
                 let sig = frost.sign(
                     &frost_keys[signer_index],
@@ -1176,7 +1177,7 @@ mod test {
 
             assert!(frost.schnorr.verify(
                 &frost_keys[signer_indexes[0]].public_key(),
-                Message::<Public>::plain("test", b"test"),
+                message,
                 &combined_sig
             ));
         }