func Run() error {
	var allFlags flag.FlagSet
	klog.InitFlags(&allFlags)
	// only add the flags that are still supported for kubeadm
	allFlags.VisitAll(func(f *flag.Flag) {
		switch f.Name {
		case "v", "add_dir_header", "skip_headers":
			flag.CommandLine.Var(f.Value, f.Name, f.Usage)
		}
	})

	pflag.CommandLine.SetNormalizeFunc(cliflag.WordSepNormalizeFunc)
	pflag.CommandLine.AddGoFlagSet(flag.CommandLine)

- `--log-flush-frequency` had no effect in several commands or was missing. Help and warning texts were not always using the right format for a command (`add_dir_header` instead of `add-dir-header`). Fixing this included cleaning up flag handling in component-base/logs: that package no longer adds flags to the global flag sets. Commands which want the klog and `--log-flush-frequency` flags must explicitly call...