Some not-very-significant cleanups while fixing another bug

diff --git a/admin/enrol.php b/admin/enrol.php
index 6ffe8209da246b6eb23eb2c24966217d29a21ddf..e373a7e866649a98db6c1b15d8ac2181dce0c278 100644 (file)
--- a/admin/enrol.php
+++ b/admin/enrol.php
@@ -4,7 +4,7 @@
 
     include("../config.php");
 
-    $enrol = optional_param('enrol', $CFG->enrol);
+    $enrol = optional_param('enrol', $CFG->enrol, PARAM_ALPHA);
 
     require_login();
 
@@ -20,7 +20,6 @@
         error(get_string('confirmsesskeybad', 'error'));
     }
 
-    $enrol = clean_filename($enrol);
     require_once("$CFG->dirroot/enrol/$enrol/enrol.php");   /// Open the class
 
     $enrolment = new enrolment_plugin();