MDL-19281 fixing proper function name of course delete hook for course formats

course/format/README.txt

@@ -138,3 +138,9 @@ Optional file (styles)
 * yourformat/styles.php
 
   If this file exists it will be included in the CSS Moodle generates.
+
+
+Optional delete course hook
+---------------------------
+
+* in your yourformat/lib.php add function format_yourformat_delete_course($courseid)

lib/moodlelib.php

@@ -4009,7 +4009,7 @@ function remove_course_contents($courseid, $showfeedback=true) {
 /// Clean up course formats (iterate through all formats in the even the course format was ever changed)
     $formats = get_plugin_list('format');
     foreach ($formats as $format=>$formatdir) {
-        $formatdelete = $format.'_course_format_delete_course';
+        $formatdelete = 'format_'.$format.'_delete_course';
         $formatlib    = "$formatdir/lib.php";
         if (file_exists($formatlib)) {
             include_once($formatlib);