From 155ee515d4c0cd3ecddf9f659d9edd84b284081f Mon Sep 17 00:00:00 2001
From: Fomafix <fomafix@googlemail.com>
Date: Fri, 1 Jan 2016 20:31:59 +0000
Subject: [PATCH] Export: Use BCP 47 language code for attribute xml:lang

The patch changes for example
 https://crh.wikipedia.org/wiki/Mahsus:Export/Ba%C5%9F_Saife
from
 xml:lang="crh-latn"
to
 xml:lang="crh-Latn"

Change-Id: I2fb218fe026c5ffee081fb8aaee7b154a8732bdc
---
 includes/export/XmlDumpWriter.php | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/includes/export/XmlDumpWriter.php b/includes/export/XmlDumpWriter.php
index a3ec66cc0e..5cea50ca7f 100644
--- a/includes/export/XmlDumpWriter.php
+++ b/includes/export/XmlDumpWriter.php
@@ -38,7 +38,7 @@ class XmlDumpWriter {
 	 * @return string
 	 */
 	function openStream() {
-		global $wgLanguageCode;
+		global $wgContLang;
 		$ver = WikiExporter::schemaVersion();
 		return Xml::element( 'mediawiki', [
 			'xmlns'              => "http://www.mediawiki.org/xml/export-$ver/",
@@ -56,7 +56,7 @@ class XmlDumpWriter {
 			'xsi:schemaLocation' => "http://www.mediawiki.org/xml/export-$ver/ " .
 				"http://www.mediawiki.org/xml/export-$ver.xsd",
 			'version'            => $ver,
-			'xml:lang'           => $wgLanguageCode ],
+			'xml:lang'           => $wgContLang->getHtmlCode() ],
 			null ) .
 			"\n" .
 			$this->siteInfo();
-- 
2.20.1