Fix some small linting issues

bench_property_test.go

@@ -46,6 +46,6 @@ func BenchmarkHtml(b *testing.B) {
 	sel := DocW().Find("h2")
 	b.StartTimer()
 	for i := 0; i < b.N; i++ {
-		sel.Html()
+		_, _ = sel.Html()
 	}
 }

utilities.go

@@ -51,15 +51,16 @@ func nodeName(node *html.Node) string {
 	case html.ElementNode, html.DoctypeNode:
 		return node.Data
 	default:
-		if node.Type >= 0 && int(node.Type) < len(nodeNames) {
+		if int(node.Type) < len(nodeNames) {
 			return nodeNames[node.Type]
 		}
 		return ""
 	}
 }
 
-// Render renders the html of the first element from selector and writes it to the writer.
-// // It behaves the same as OuterHtml but writes to w instead of returning the string.
+// Render renders the html of the first element from selector and writes it to
+// the writer.  It behaves the same as OuterHtml but writes to w instead of
+// returning the string.
 func Render(w io.Writer, s *Selection) error {
 	if s.Length() == 0 {
 		return nil

utilities_test.go

@@ -80,6 +80,7 @@ func TestNodeNameMultiSel(t *testing.T) {
 		t.Errorf("want %v, got %v", in, out)
 	}
 }
+
 func TestOuterHtml(t *testing.T) {
 	doc, err := NewDocumentFromReader(strings.NewReader(allNodes))
 	if err != nil {