fix fmt

Signed-off-by: Little-Wallace <bupt2013211450@gmail.com>

pkg/lightning/backend/kv/kv2sql.go

@@ -14,13 +14,14 @@
 package kv
 
 import (
-	"github.com/pingcap/br/pkg/lightning/metric"
 	"github.com/pingcap/parser/model"
 	"github.com/pingcap/tidb/kv"
 	"github.com/pingcap/tidb/table"
 	"github.com/pingcap/tidb/table/tables"
 	"github.com/pingcap/tidb/tablecodec"
 	"github.com/pingcap/tidb/types"
+
+	"github.com/pingcap/br/pkg/lightning/metric"
 )
 
 type TableKVDecoder struct {

pkg/lightning/backend/kv/types.go

@@ -3,9 +3,10 @@
 package kv
 
 import (
+	"github.com/pingcap/tidb/types"
+
 	"github.com/pingcap/br/pkg/lightning/log"
 	"github.com/pingcap/br/pkg/lightning/verification"
-	"github.com/pingcap/tidb/types"
 )
 
 // Encoder encodes a row of SQL values into some opaque type which can be

pkg/lightning/common/conn.go

@@ -15,11 +15,12 @@ package common
 
 import (
 	"context"
+	"sync"
+
 	"github.com/pingcap/br/pkg/lightning/log"
 	"github.com/pingcap/errors"
 	"go.uber.org/zap"
 	"google.golang.org/grpc"
-	"sync"
 )
 
 // connPool is a lazy pool of gRPC channels.

pkg/lightning/restore/duplicate.go

@@ -16,6 +16,13 @@ package restore
 import (
 	"bytes"
 	"context"
+	"io"
+	"math"
+	"sort"
+	"strconv"
+	"sync"
+	"time"
+
 	"github.com/docker/go-units"
 	backendkv "github.com/pingcap/br/pkg/lightning/backend/kv"
 	"github.com/pingcap/br/pkg/lightning/common"
@@ -35,12 +42,6 @@ import (
 	"google.golang.org/grpc/backoff"
 	"google.golang.org/grpc/credentials"
 	"google.golang.org/grpc/keepalive"
-	"io"
-	"math"
-	"sort"
-	"strconv"
-	"sync"
-	"time"
 
 	"github.com/cockroachdb/pebble"
 	"github.com/pingcap/errors"
@@ -332,6 +333,7 @@ func (manager *DuplicateManager) getImportClient(ctx context.Context, peer *meta
 	}
 	return sst.NewImportSSTClient(conn), nil
 }
+
 func (manager *DuplicateManager) makeConn(ctx context.Context, storeID uint64) (*grpc.ClientConn, error) {
 	store, err := manager.pdClient.GetStore(ctx, storeID)
 	if err != nil {