Update docs to note what passing empty string does

See r50128.

diff --git a/includes/LogEventsList.php b/includes/LogEventsList.php
index 40204d0..7a6f3f8 100644 (file)
--- a/includes/LogEventsList.php
+++ b/includes/LogEventsList.php
@@ -551,7 +551,8 @@ class LogPager extends ReverseChronologicalPager {
        /**
         * Set the log reader to return only entries of the given type.
         * Type restrictions enforced here
-        * @param $types String or array: Log types ('upload', 'delete', etc)
+        * @param $types String or array: Log types ('upload', 'delete', etc);
+        *   empty string means no restriction
         */
        private function limitType( $types ) {
                global $wgLogRestrictions, $wgUser;