message: Fix transfer bench "Mint(0) [65024]" error.
diff: @@ -326,7 +326,7 @@ pub fn transfer_to_existing_purses(group: &mut BenchmarkGroup<WallTime>, should_
  let mut builder = bootstrap(
  data_dir.path(),
  bootstrap_accounts.clone(),
  - U512::from(MINIMUM_ACCOUNT_CREATION_BALANCE),
  + U512::from(MINIMUM_ACCOUNT_CREATION_BALANCE) * 10,
  );
  let purse_amount = U512::one();
  