MDL-75946 lib_horde: Fixed deprecated FILTER_SANITIZE_STRING

lib/horde/framework/Horde/Variables.php

@@ -335,8 +335,8 @@ class Horde_Variables implements ArrayAccess, Countable, IteratorAggregate
         }
 
         return is_array($val)
-            ? filter_var_array($val, FILTER_SANITIZE_STRING)
-            : filter_var($val, FILTER_SANITIZE_STRING);
+            ? filter_var_array($val, FILTER_SANITIZE_FULL_SPECIAL_CHARS, FILTER_FLAG_NO_ENCODE_QUOTES)
+            : filter_var($val, FILTER_SANITIZE_FULL_SPECIAL_CHARS, FILTER_FLAG_NO_ENCODE_QUOTES);
     }
 
     /* Protected methods. */

lib/horde/readme_moodle.txt

@@ -13,6 +13,10 @@ Description of import of Horde libraries
   passing in your path to Horde (the directory you've cloned the repository):
     /tmp/copyhorde.sh ~/git/base/directory/from/step/2
 
+
+Notes:
+* 2023-01-20 Applied patch https://github.com/horde/Util/pull/10
+
 ====
 #!/bin/sh