fix: Update HLJS language definition as non-anonymous (#2)

This might help importing over HTML in ReSpec.

Author: redmer

src/languages/turtle.js

@@ -4,10 +4,10 @@ Author: Redmer KRONEMEIJER <redmer.kronemeijer@rdmr.eu>
 Contributors: Mark ELLIS <mark.ellis@stardog.com>, Vladimir ALEXIEV <vladimir.alexiev@ontotext.com>
 */
 
-// var module = module ? module : {};     // shim for browser use
+var module = module ? module : {};     // shim for browser use
 
-// function hljsDefineTurtle(hljs) {
-export default function (hljs) {
+function hljsDefineTurtle(hljs) {
+// export default function (hljs) {
   var KEYWORDS = {
     keyword: 'BASE|10 PREFIX|10 @base|10 @prefix|10',
     literal: 'true|0 false|0',
@@ -115,8 +115,8 @@ export default function (hljs) {
   };
 }
 
-// module.exports = function (hljs) {
-//   hljs.registerLanguage('turtle', hljsDefineTurtle);
-// };
+module.exports = function (hljs) {
+  hljs.registerLanguage('turtle', hljsDefineTurtle);
+};
 
-// module.exports.definer = hljsDefineTurtle;
+module.exports.definer = hljsDefineTurtle;