Bump to Buildah v1.13.1

Signed-off-by: TomSweeneyRedHat <tsweeney@redhat.com>

1 files changed, 4 insertions, 2 deletions

diff --git a/vendor/k8s.io/apimachinery/pkg/util/sets/string.go b/vendor/k8s.io/apimachinery/pkg/util/sets/string.go
index ba00ad7df..e6f37db88 100644
--- a/vendor/k8s.io/apimachinery/pkg/util/sets/string.go
+++ b/vendor/k8s.io/apimachinery/pkg/util/sets/string.go
@@ -46,17 +46,19 @@ func StringKeySet(theMap interface{}) String {
 }
 
 // Insert adds items to the set.
-func (s String) Insert(items ...string) {
+func (s String) Insert(items ...string) String {
 	for _, item := range items {
 		s[item] = Empty{}
 	}
+	return s
 }
 
 // Delete removes all items from the set.
-func (s String) Delete(items ...string) {
+func (s String) Delete(items ...string) String {
 	for _, item := range items {
 		delete(s, item)
 	}
+	return s
 }
 
 // Has returns true if and only if item is contained in the set.