Tweaked logging (#2695)

* Tweaked logging

* Debug for Statement

polkadot/node/primitives/src/lib.rs

@@ -44,7 +44,7 @@ pub mod approval;
 /// it gives access to the commitments to validators who have not executed the candidate. This
 /// is necessary to allow a block-producing validator to include candidates from outside of the para
 /// it is assigned to.
-#[derive(Debug, Clone, PartialEq, Eq, Encode, Decode)]
+#[derive(Clone, PartialEq, Eq, Encode, Decode)]
 pub enum Statement {
 	/// A statement that a validator seconds a candidate.
 	#[codec(index = 1)]
@@ -54,6 +54,15 @@ pub enum Statement {
 	Valid(CandidateHash),
 }
 
+impl std::fmt::Debug for Statement {
+	fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
+		match self {
+			Statement::Seconded(seconded) => write!(f, "Seconded: {:?}", seconded.descriptor),
+			Statement::Valid(hash) => write!(f, "Valid: {:?}", hash),
+		}
+	}
+}
+
 impl Statement {
 	/// Get the candidate hash referenced by this statement.
 	///