Minor - Flint fixes

main/exercise/exercise.class.php

@@ -7939,6 +7939,7 @@ class Exercise
         if (empty($this->exerciseCategoryId)) {
             return null;
         }
+
         return (int) $this->exerciseCategoryId;
     }
 
@@ -8372,6 +8373,7 @@ class Exercise
      * Return an HTML table of exercises for on-screen printing, including
      * action icons. If no exercise is present and the user can edit the
      * course, show a "create test" button.
+     *
      * @param int    $categoryId
      * @param string $keyword
      *

main/mySpace/access_details_session.php

@@ -249,7 +249,6 @@ if ($form->validate()) {
                 api_format_time($partialDuration, 'js'),
             ];
 
-
             $report[0]['courses'][$course['course_id']][] = $record;
             $report[0]['name'][$course['course_id']] = $course['title'];
         }