change import package

benchmark/benchmark.go

@@ -38,12 +38,14 @@ package benchmark
 
 import (
 	"golang.org/x/net/context"
-	"google.golang.org/grpc"
-	testpb "google.golang.org/grpc/benchmark/grpc_testing"
-	"google.golang.org/grpc/grpclog"
 	"io"
 	"math"
 	"net"
+	
+	"google.golang.org/grpc"
+	testpb "google.golang.org/grpc/benchmark/grpc_testing"
+	"google.golang.org/grpc/grpclog"
+
 )
 
 func newPayload(t testpb.PayloadType, size int) *testpb.Payload {