funcsAO.go
func ChompRight(s, suffix string) string {
	if strings.HasSuffix(s, suffix) {
		return s[:len(s)-len(suffix)]
	}
	return s
}
func ChompRight(s, suffix string) string {
	if strings.HasSuffix(s, suffix) {
		return s[:len(s)-len(suffix)]
	}
	return s
}
// ChompRight removes suffix from end of s.