if li.Token[k] != lj.Token[k] {
			return li.Token[k] < lj.Token[k]
		}
	}
	return len(li.Token) < len(lj.Token)
}

// lineExcludeLess reports whether li should be sorted before lj for lines in
// an "exclude" block.
func lineExcludeLess(li, lj *Line) bool {
	if len(li.Token) != 2 || len(lj.Token) != 2 {
		// Not a known exclude specification.
		// Fall back to sorting lexicographically.