duplicate error display is removed

.gitignore

@@ -22,3 +22,9 @@ kpt/kpt
 
 # Emacs temp files
 *~
+
+# VS Code individual configurations
+.vscode/
+
+# local tmp directory (in case you download packages here)
+tmp/

commands/commands.go

@@ -43,8 +43,7 @@ func GetAnthosCommands(name string) []*cobra.Command {
 
 // NormalizeCommand will modify commands to be consistent, e.g. silencing errors
 func NormalizeCommand(c ...*cobra.Command) {
-	for i := range c {
-		cmd := c[i]
+	for _, cmd := range c {
 		cmd.Short = strings.TrimPrefix(cmd.Short, "[Alpha] ")
 		NormalizeCommand(cmd.Commands()...)
 	}

commands/configcmd.go

@@ -140,6 +140,7 @@ func SetCommand(parent string) *cobra.Command {
 	kustomizeCmd.Long = cfgdocs.SetShort + "\n" + cfgdocs.SetLong
 	kustomizeCmd.Example = cfgdocs.SetExamples
 	kustomizeCmd.SilenceUsage = true
+	kustomizeCmd.SilenceErrors = true
 	var autoRun bool
 	setCmd.Flags().BoolVar(&autoRun, "auto-run", true,
 		`Automatically run functions after setting (if enabled for the package)`)