Mod:format import

cluster/cluster_impl/failover_cluster_invoker.go

@@ -18,10 +18,13 @@
 package cluster_impl
 
 import (
-	perrors "github.com/pkg/errors"
 	"strconv"
 )
 
+import (
+	perrors "github.com/pkg/errors"
+)
+
 import (
 	"github.com/apache/dubbo-go/cluster"
 	"github.com/apache/dubbo-go/common/constant"