message: fix: ambiguous dao error messages
diff: @@ -45,7 +45,7 @@ pub(crate) fn check_tx_fee(
  ) -> Result<Capacity, Reject> {
  let fee = DaoCalculator::new(snapshot.consensus(), &snapshot.as_data_provider())
  .transaction_fee(rtx)
  - .map_err(|err| Reject::Malformed(format!("Transaction fee calculate overflow: {}", err)))?;
  + .map_err(|err| Reject::Malformed(format!("{}", err)))?;
  let min_fee = tx_pool.config.min_fee_rate.fee(tx_size);
  // reject txs which fee lower than min fee rate
  if fee < min_fee {
  