add doctest hook for markmin. It wasn't run previously.

gluon/tests/test_old_doctests.py

@@ -1,7 +1,8 @@
 #!/usr/bin/env python
 # -*- coding: utf-8 -*-
 
-""" Unit tests for old doctests in validators.py, utf8.py, html.py.
+""" Unit tests for old doctests in validators.py, utf8.py, html.py,
+    markmin2html.py.
     Don't abuse doctests, web2py > 2.4.5 will accept only unittests
 """
 import sys
@@ -27,6 +28,12 @@ def load_tests(loader, tests, ignore):
     tests.addTests(
         doctest.DocTestSuite('utf8')
         )
+    
+    tests.addTests(
+        doctest.DocTestSuite('contrib.markmin.markmin2html',
+        )
+    )
+    
     return tests
 
 if __name__ == '__main__':