--- a/doc/check-seclevel.py Mon Nov 09 09:58:44 2020 -0800
+++ b/doc/check-seclevel.py Fri Nov 06 13:58:59 2020 -0800
@@ -1,4 +1,4 @@
-#!/usr/bin/env python
+#!/usr/bin/env python3
#
# checkseclevel - checking section title levels in each online help document