cli: add 'test placeholder' subcommand for placeholder debugging

cli/cli.go

@@ -42,6 +42,7 @@ func init() {
 type Subcommand struct {
 	Use             string
 	Short           string
+	Example 		string
 	NoRequireConfig bool
 	Run             func(subcommand *Subcommand, args []string) error
 	SetupFlags      func(f *pflag.FlagSet)
@@ -94,6 +95,7 @@ func addSubcommandToCobraCmd(c *cobra.Command, s *Subcommand) {
 	cmd := cobra.Command{
 		Use: s.Use,
 		Short: s.Short,
+		Example: s.Example,
 	}
 	if s.SetupSubcommands == nil {
 		cmd.Run = s.run
@@ -113,4 +115,4 @@ func Run() {
 	if err := rootCmd.Execute(); err != nil {
 		os.Exit(1)
 	}
-}
+}