update Drupal 7.19

Signed-off-by: bachy <git@g-u-i.net>

includes/file.inc

@@ -1113,6 +1113,9 @@ function file_munge_filename($filename, $extensions, $alerts = TRUE) {
 
   // Allow potentially insecure uploads for very savvy users and admin
   if (!variable_get('allow_insecure_uploads', 0)) {
+    // Remove any null bytes. See http://php.net/manual/en/security.filesystem.nullbytes.php
+    $filename = str_replace(chr(0), '', $filename);
+
     $whitelist = array_unique(explode(' ', trim($extensions)));
 
     // Split the filename up by periods. The first part becomes the basename