matchers.go
func HaveSuffix(suffix string, args ...interface{}) types.GomegaMatcher {
	return &matchers.HaveSuffixMatcher{
		Suffix: suffix,
		Args:   args,
	}
}
func HaveSuffix(suffix string, args ...interface{}) types.GomegaMatcher {
	return &matchers.HaveSuffixMatcher{
		Suffix: suffix,
		Args:   args,
	}
}
//HaveSuffix succeeds if actual is a string or stringer that contains the
//passed-in string as a suffix.  Optional arguments can be provided to construct
//via fmt.Sprintf().