message: API: Fix indentation in enrollStudent
diff: @@ -539,7 +539,8 @@ export class CourseController {
  if (course.students.indexOf(currentUser._id) < 0) {
  course.students.push(currentUser);
  await new NotificationSettings({
  - 'user': currentUser, 'course': course,
  + 'user': currentUser,
  + 'course': course,
  'notificationType': API_NOTIFICATION_TYPE_ALL_CHANGES,
  'emailNotification': false
  }).save();
  