From 93beeb72544369a653b851a5af824f6f9fe95c29 Mon Sep 17 00:00:00 2001
From: nfreear <nfreear>
Date: Tue, 11 Dec 2007 13:58:39 +0000
Subject: [PATCH] Fixes MDL-12539 "Help link text for all admin/user filters
 are broken".

---
 lib/weblib.php | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/lib/weblib.php b/lib/weblib.php
index e2fb815444..767a9853a5 100644
--- a/lib/weblib.php
+++ b/lib/weblib.php
@@ -5802,7 +5802,7 @@ function editorhelpbutton(){
  * @return string
  * @todo Finish documenting this function
  */
-function helpbutton ($page, $title='', $module='moodle', $image=true, $linktext=false, $text='', $return=false,
+function helpbutton ($page, $title, $module='moodle', $image=true, $linktext=false, $text='', $return=false,
                      $imagetext='') {
     global $CFG, $COURSE;
 
@@ -5817,6 +5817,10 @@ function helpbutton ($page, $title='', $module='moodle', $image=true, $linktext=
         $module = 'moodle';
     }
 
+    if ($title == '' && $linktext == '') {
+        debugging('Error in call to helpbutton function: at least one of $title and $linktext is required');
+    }
+
     // Warn users about new window for Accessibility
     $tooltip = get_string('helpprefix2', '', trim($title, ". \t")) .' ('.get_string('newwindow').')';
 
@@ -6975,4 +6979,4 @@ function is_in_popup() {
 
 
 // vim:autoindent:expandtab:shiftwidth=4:tabstop=4:tw=140:
-?>
+?>
\ No newline at end of file
-- 
2.39.5