MDL-13663 Last lang string change. Merging from MOODLE_19_STABLE

lang/en_utf8/grades.php

@@ -225,7 +225,7 @@
 $string['gradeoutcomes'] = 'Outcomes';
 $string['gradeoutcomescourses'] = 'Course outcomes';
 $string['gradepass'] = 'Grade to pass';
-$string['gradepasshelp'] = 'What grade is needed to pass?';
+$string['gradepasshelp'] = 'If an item has a grade that users must equal or exceed to pass that item, you can set that here.';
 $string['gradepublishing'] = 'Enable publishing';
 $string['graderreport'] = 'Grader report';
 $string['gradessettings'] = 'Grade settings';