</li>

<li>
Converting a slice of runes to a string type yields
a string that is the concatenation of the individual rune values
converted to strings.

<pre>
string([]rune{0x767d, 0x9d6c, 0x7fd4})   // "\u767d\u9d6c\u7fd4" == "白鵬翔"
string([]rune{})                         // ""
string([]rune(nil))                      // ""

type runes []rune

// based on the service name in their comment. (If either rule has no comment then the
// return value is undefined.)
func orderByCommentServiceName(rule1, rule2 *iptablestest.Rule) bool {
	if rule1.Comment == nil || rule2.Comment == nil {
		return false
	}
	name1, name2 := rule1.Comment.Value, rule2.Comment.Value

	// The service name is the comment up to the first space or colon
	i := strings.IndexAny(name1, " :")
	if i != -1 {