template/funcs.go
func replaceAll(f, t, s string) (string, error) {
	return strings.Replace(s, f, t, -1), nil
}
func replaceAll(f, t, s string) (string, error) {
	return strings.Replace(s, f, t, -1), nil
}
// replaceAll replaces all occurrences of a value in a string with the given
// replacement value.