Correct Microsoft security bulletin for ppr_flatten_rec

Author: Jon Cave

modules/exploits/windows/local/ppr_flatten_rec.rb

@@ -57,7 +57,7 @@ def initialize(info={})
           [ 'CVE', '2013-3660' ],
           [ 'EDB', '25912' ],
           [ 'OSVDB', '93539' ],
-          [ 'MSB', 'MS13-015' ],
+          [ 'MSB', 'MS13-053' ],
           [ 'URL', 'http://seclists.org/fulldisclosure/2013/May/91' ],
         ],
       'DisclosureDate' => 'May 15 2013',