storage: cleanup StubCourse after load_course doctest.

diff --git a/pygrader/storage.py b/pygrader/storage.py
index 8b0c8b83192d95d101d3de90641287b26a9fd26f..ad5cc2909c942b8c3745a7de78f31bc31f2af82b 100644 (file)
--- a/pygrader/storage.py
+++ b/pygrader/storage.py
@@ -54,6 +54,7 @@ def load_course(basedir):
     []
     >>> print(course.robot)
     <Person Robot101>
+    >>> stub_course.cleanup()
     """
     _LOG.debug('loading course from {}'.format(basedir))
     config = _configparser.ConfigParser()