Explicitely return null from WikiPage::newFromID()

Follow-up I8943b4dec5 (d7f465f).

To match the documentation.

Change-Id: I7b960704d6b3a83e389ece182bf94142341ea88c

diff --git a/includes/WikiPage.php b/includes/WikiPage.php
index ee6f574..69c37ce 100644 (file)
--- a/includes/WikiPage.php
+++ b/includes/WikiPage.php
@@ -144,7 +144,7 @@ class WikiPage implements Page, IDBAccessObject {
        public static function newFromID( $id, $from = 'fromdb' ) {
                // page id's are never 0 or negative, see bug 61166
                if ( $id < 1 ) {
-                       return;
+                       return null;
                }
 
                $from = self::convertSelectType( $from );