when the admin creates a new account, use the system language for this accounts

mod/admin.php

@@ -1127,18 +1127,20 @@ function admin_page_dbsync(&$a) {
  * @param App $a
  */
 function admin_page_users_post(&$a){
-	$pending	=	(x($_POST, 'pending')			? $_POST['pending']		: array());
-	$users		=	(x($_POST, 'user')			? $_POST['user']		: array());
-	$nu_name	=	(x($_POST, 'new_user_name')		? $_POST['new_user_name']	: '');
-	$nu_nickname	=	(x($_POST, 'new_user_nickname')		? $_POST['new_user_nickname']	: '');
-	$nu_email	=	(x($_POST, 'new_user_email')		? $_POST['new_user_email']	: '');
+	$pending     =	(x($_POST, 'pending')			? $_POST['pending']		: array());
+	$users       =	(x($_POST, 'user')			? $_POST['user']		: array());
+	$nu_name     =	(x($_POST, 'new_user_name')		? $_POST['new_user_name']	: '');
+	$nu_nickname =	(x($_POST, 'new_user_nickname')		? $_POST['new_user_nickname']	: '');
+	$nu_email    =	(x($_POST, 'new_user_email')		? $_POST['new_user_email']	: '');
+	$nu_language = get_config('system', 'language');
 
 	check_form_security_token_redirectOnErr('/admin/users', 'admin_users');
 
 	if(!($nu_name==="") && !($nu_email==="") && !($nu_nickname==="")) {
 		require_once('include/user.php');
 
-		$result = create_user(array('username'=>$nu_name, 'email'=>$nu_email, 'nickname'=>$nu_nickname, 'verified'=>1));
+		$result = create_user(array('username'=>$nu_name, 'email'=>$nu_email, 
+			'nickname'=>$nu_nickname, 'verified'=>1, 'language'=>$nu_language));
 		if(! $result['success']) {
 			notice($result['message']);
 			return;