Update benchmarking.rs

Co-authored-by: Guillaume Thiolliere <guillaume.thiolliere@parity.io>

substrate/frame/scheduler/src/benchmarking.rs

@@ -15,7 +15,7 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-//! Pallet pallet benchmarking.
+//! Scheduler pallet benchmarking.
 
 use alloc::vec;
 use frame_benchmarking::v2::*;