fix E_STRICT errors FS#2427

This commit fixes all E_STRICT messages shown when running the test
suite. There might be more problems not covered by tests, yet.

For compatibility reasons with plugins, E_STRICT errors are still
supressed.

1 files changed, 1 insertions, 1 deletions

diff --git a/lib/plugins/popularity/action.php b/lib/plugins/popularity/action.php
index bf11efba6..1c7a2f65d 100644
--- a/lib/plugins/popularity/action.php
+++ b/lib/plugins/popularity/action.php
@@ -18,7 +18,7 @@ class action_plugin_popularity extends Dokuwiki_Action_Plugin {
     /**
      * Register its handlers with the dokuwiki's event controller
      */
-    function register(&$controller) {
+    function register(Doku_Event_Handler $controller) {
         $controller->register_hook('INDEXER_TASKS_RUN', 'AFTER',  $this, '_autosubmit', array());
     }