update vendor

Signed-off-by: Roland.Ma <rolandma@yunify.com>

vendor/sigs.k8s.io/kustomize/api/krusty/doc.go

@@ -0,0 +1,11 @@
+// Copyright 2019 The Kubernetes Authors.
+// SPDX-License-Identifier: Apache-2.0
+
+// Package krusty is intended as the entry point package
+// for those seeking to add kustomize ability to other
+// programs.
+//
+// To use, follow the example of the kustomize CLI's 'build'
+// command.  Also, see the high level tests in this package,
+// which serve a dual purpose as examples.
+package krusty