MDL-13146 - prevent debug message about missing helpbutton title

merged from MOODLE_19_STABLE

diff --git a/mod/data/lib.php b/mod/data/lib.php
index 0c5388b5875c230ff43cd0d2b9c2577967c76184..7d449bd9cbcab6aef09fb6861cd006d4ce9537b1 100755 (executable)
--- a/mod/data/lib.php
+++ b/mod/data/lib.php
@@ -1966,7 +1966,7 @@ class PresetImporter {
 
         if (!empty($currentfields) && !empty($newfields)) {
             echo "<h3>$strfieldmappings ";
-            helpbutton('fieldmappings', '', 'data');
+            helpbutton('fieldmappings', $strfieldmappings, 'data');
             echo '</h3><table>';
 
             foreach ($newfields as $nid => $newfield) {