chore: Sync valid-langs template with current format (#800)

Was missing the manually added comments and ESLint headings.

build/tasks/langs.js

@@ -37,12 +37,20 @@ module.exports = function (grunt) {
 	function generateOutput(langs, checkPath) {
 		var path = checkPath + '.js';
 		var template = [
-			'/*global axe */\n',
-			'var langs = ' + JSON.stringify(langs, null, '\t') + ';\n',
+			'/* global axe */\n',
+			'/*eslint quotes: 0*/\n',
+			'var langs = ' + JSON.stringify(langs, null, '\t') + ';\n\n',
+			'/**\n',
+			' * Returns array of valid language codes\n',
+			' * @method validLangs\n',
+			' * @memberof axe.commons.utils\n',
+			' * @instance\n',
+			' * @return {Array<Sting>} Valid language codes\n',
+			' */\n',
 			'axe.utils.validLangs = function () {\n',
 			'\t\'use strict\';\n',
 			'\treturn langs;\n',
-			'};'
+			'};\n'
 		].join('');
 		grunt.file.write(path, template);
 	}

lib/commons/utils/valid-langs.js

@@ -1545,6 +1545,7 @@ var langs = [
 	"cnk",
 	"cnl",
 	"cno",
+	"cnr",
 	"cns",
 	"cnt",
 	"cnu",
@@ -1672,6 +1673,7 @@ var langs = [
 	"cuv",
 	"cuw",
 	"cux",
+	"cuy",
 	"cvg",
 	"cvn",
 	"cwa",
@@ -2351,6 +2353,7 @@ var langs = [
 	"gjr",
 	"gju",
 	"gka",
+	"gkd",
 	"gke",
 	"gkn",
 	"gko",
@@ -2392,6 +2395,7 @@ var langs = [
 	"gng",
 	"gnh",
 	"gni",
+	"gnj",
 	"gnk",
 	"gnl",
 	"gnm",
@@ -2533,6 +2537,7 @@ var langs = [
 	"gyl",
 	"gym",
 	"gyn",
+	"gyo",
 	"gyr",
 	"gyy",
 	"gza",
@@ -2603,6 +2608,7 @@ var langs = [
 	"hka",
 	"hke",
 	"hkk",
+	"hkn",
 	"hks",
 	"hla",
 	"hlb",
@@ -2723,6 +2729,7 @@ var langs = [
 	"hwc",
 	"hwo",
 	"hya",
+	"hyw",
 	"hyx",
 	"iai",
 	"ian",
@@ -4014,6 +4021,7 @@ var langs = [
 	"lwl",
 	"lwm",
 	"lwo",
+	"lws",
 	"lwt",
 	"lwu",
 	"lww",
@@ -4916,6 +4924,7 @@ var langs = [
 	"nlj",
 	"nlk",
 	"nll",
+	"nlm",
 	"nln",
 	"nlo",
 	"nlq",
@@ -5157,6 +5166,7 @@ var langs = [
 	"nyy",
 	"nza",
 	"nzb",
+	"nzd",
 	"nzi",
 	"nzk",
 	"nzm",
@@ -5365,6 +5375,7 @@ var langs = [
 	"pbh",
 	"pbi",
 	"pbl",
+	"pbm",
 	"pbn",
 	"pbo",
 	"pbp",
@@ -6543,6 +6554,7 @@ var langs = [
 	"tew",
 	"tex",
 	"tey",
+	"tez",
 	"tfi",
 	"tfn",
 	"tfo",