Cargo clippy fix

massa-ledger-exports/src/ledger_changes.rs

@@ -839,9 +839,9 @@ impl LedgerChanges {
     /// and optionally if a datastore key write also exists in the address's datastore.
     /// Notes:
     /// - A ledger entry could be written to without any changes on the values associated,
-    /// for example if the value was changed multiple times in the same slot.
+    ///   for example if the value was changed multiple times in the same slot.
     /// - This code assumes Delete cannot be shadowed by Set operations in the same slot, which may not be the case
-    /// when / if we allow full entry Delete given the current LedgerChanges::Delete handling. In that case, a rework may be necessary.
+    ///   when / if we allow full entry Delete given the current LedgerChanges::Delete handling. In that case, a rework may be necessary.
     ///
     /// # Arguments
     /// * `addr`: target address