MDL-14475 initialised $hideshow; backported from MOODLE_19_STABLE

diff --git a/course/lib.php b/course/lib.php
index d550855c2b860d267163637591afed44aa36049a..e2d59b3d4d0372088fbb6d538622986681e160f3 100644 (file)
--- a/course/lib.php
+++ b/course/lib.php
@@ -2395,7 +2395,10 @@ function make_editing_buttons($mod, $absolute=false, $moveselect=true, $indent=-
                         ' src="'.$CFG->pixpath.'/t/show.gif" class="iconsmall" '.
                         ' alt="'.$str->show.'" /></a>'."\n";
         }
+    } else {
+        $hideshow = '';
     }
+
     if ($mod->groupmode !== false) {
         if ($mod->groupmode == SEPARATEGROUPS) {
             $grouptitle = $str->groupsseparate;