Restore the empty line after the license (#6088)

substrate/client/transaction-pool/src/testing/mod.rs

@@ -15,6 +15,7 @@
 
 // You should have received a copy of the GNU General Public License
 // along with this program. If not, see <https://www.gnu.org/licenses/>.
+
 //! Tests for top-level transaction pool api
 
 mod pool;

substrate/client/transaction-pool/src/testing/pool.rs

@@ -15,6 +15,7 @@
 
 // You should have received a copy of the GNU General Public License
 // along with this program. If not, see <https://www.gnu.org/licenses/>.
+
 use crate::*;
 use sp_transaction_pool::TransactionStatus;
 use futures::executor::block_on;