[#1147] Fix gofumpt issue

Signed-off-by: Anton Nikiforov <an.nikiforov@yadro.com>

cmd/frostfs-cli/modules/ape_manager/add_chain.go

@@ -38,9 +38,7 @@ const (
 	groupTarget      = "group"
 )
 
-var (
-	errUnknownTargetType = errors.New("unknown target type")
-)
+var errUnknownTargetType = errors.New("unknown target type")
 
 var addCmd = &cobra.Command{
 	Use:   "add",

pkg/services/apemanager/executor.go

@@ -24,9 +24,7 @@ import (
 	"go.uber.org/zap"
 )
 
-var (
-	errEmptyBodySignature = errors.New("malformed request: empty body signature")
-)
+var errEmptyBodySignature = errors.New("malformed request: empty body signature")
 
 type cfg struct {
 	log *logger.Logger