func currentContext(o options) (string, error) {
	_, cmd := command("kubectl", "config", "current-context")
	b, err := cmd.Output()
	return strings.TrimSpace(string(b)), err
}
func currentContext(o options) (string, error) {
	_, cmd := command("kubectl", "config", "current-context")
	b, err := cmd.Output()
	return strings.TrimSpace(string(b)), err
}
// currentContext returns kubectl config current-context