func WarnWordSepNormalizeFunc(f *pflag.FlagSet, name string) pflag.NormalizedName {
	if strings.Contains(name, "_") {
		nname := strings.Replace(name, "_", "-", -1)
		glog.Warningf("%s is DEPRECATED and will be removed in a future version. Use %s instead.", name, nname)
		return pflag.NormalizedName(nname)
	}
	return pflag.NormalizedName(name)
}
WarnWordSepNormalizeFunc changes and warns for flags that contain "_" separators
package util
import (
	goflag "flag"
	"os"
	"strings"
	"github.com/golang/glog"
	"github.com/spf13/pflag"
)
func WordSepNormalizeFunc(f *pflag.FlagSet, name string) pflag.NormalizedName {
	if strings.Contains(name, "_") {
		return pflag.NormalizedName(strings.Replace(name, "_", "-", -1))
	}
	return pflag.NormalizedName(name)
}