skip print section flags if no flags

2018-08-17 17:20:05 +08:00 · 2018-08-17 17:20:05 +08:00 · 01195efbe3
parent a14673cfbd
commit 01195efbe3
1 changed files with 3 additions and 0 deletions
--- a/staging/src/k8s.io/apiserver/pkg/util/flag/sectioned.go
+++ b/staging/src/k8s.io/apiserver/pkg/util/flag/sectioned.go
@ -52,6 +52,9 @@ func (nfs *NamedFlagSets) FlagSet(name string) *pflag.FlagSet {
 func PrintSections(w io.Writer, fss NamedFlagSets, cols int) {
 	for _, name := range fss.Order {
 		fs := fss.FlagSets[name]
+		if !fs.HasFlags() {
+			continue
+		}

 		wideFS := pflag.NewFlagSet("", pflag.ExitOnError)
 		wideFS.AddFlagSet(fs)