Make General feedback more tolerant of whitespace. Merged from MOODLE_17_STABLE.

diff --git a/mod/quiz/lib.php b/mod/quiz/lib.php
index dbf04a2fbdf26cef517659467f2191aed13909a4..9a4366288bfdd224dbadb9a18a3be00453f7ef9e 100644 (file)
--- a/mod/quiz/lib.php
+++ b/mod/quiz/lib.php
@@ -518,7 +518,7 @@ function quiz_process_options(&$quiz) {
         $boundary = trim($quiz->feedbackboundaries[$i]);
         if (!is_numeric($boundary)) {
             if (strlen($boundary) > 0 && $boundary[strlen($boundary) - 1] == '%') {
-                $boundary = substr($boundary, 0, -1);
+                $boundary = trim(substr($boundary, 0, -1));
                 if (is_numeric($boundary)) {
                     $boundary = $boundary * $quiz->grade / 100.0;
                 } else {