func Left(str string, length int, pad string) string {
	return times(pad, length-len(str)) + str
}
func Left(str string, length int, pad string) string {
	return times(pad, length-len(str)) + str
}
func Left ( str string , length int , pad string ) string { return times ( pad , length - len ( str ) ) + str }
// Left left-pads the string with pad up to len runes
// len may be exceeded if
Left left - pads the string with pad up to len runes len may be exceeded if