out.Reset()
	checkHelpForFlag(t, got, parentFlag0, true)
	checkHelpForFlag(t, got, parentFlag1, true)
	checkHelpForFlag(t, got, parentFlag2, true)
	checkHelpForFlag(t, got, childFlag2, true)

	// verify the hidden parent flag is not visible in help text
	hideInheritedFlags(child, parentFlag1, parentFlag2)
	if err := parent.Execute(); err != nil {
		t.Fatal(err)
	}
	got = out.String()
	out.Reset()

	cli.BoolFlag{
		Name:  "json",
		Usage: "output logs in JSON format",
	},
	// Deprecated flag, so its hidden now, existing deployments will keep working.
	cli.BoolFlag{
		Name:   "compat",
		Usage:  "enable strict S3 compatibility by turning off certain performance optimizations",
		Hidden: true,
	},
	// This flag is hidden and to be used only during certain performance testing.
	cli.BoolFlag{
		Name:   "no-compat",