[gtksourceview] tests: add warnings in Python tests

[Sébastien Wilmet <swilmet src gnome org>]

commit 3aaef7bddbe1142943fe3d3ec87926ff0064388b
Author: Sébastien Wilmet <swilmet gnome org>
Date:   Fri Jun 17 20:23:44 2016 +0200

    tests: add warnings in Python tests
    
    Those *.py files might be useful to someone who is more comfortable in
    Python and want to try quickly something.
    
    But those python tests are less well maintained. There may be warnings
    or errors. So adding warnings at the top is better.

 tests/test-completion.py |    2 +-
 tests/test-widget.py     |    2 ++
 2 files changed, 3 insertions(+), 1 deletions(-)
---
diff --git a/tests/test-completion.py b/tests/test-completion.py
index a8dcf5f..041caf1 100644
--- a/tests/test-completion.py
+++ b/tests/test-completion.py
@@ -1,6 +1,6 @@
 #!/usr/bin/env python
 
-# WARNING: test-completion.c is more complete.
+# WARNING: test-completion.c is more complete and is better maintained.
 
 import os, os.path
 import sys
diff --git a/tests/test-widget.py b/tests/test-widget.py
index 2f20056..701a195 100644
--- a/tests/test-widget.py
+++ b/tests/test-widget.py
@@ -2,6 +2,8 @@
 # -*- Mode: Python; py-indent-offset: 4 -*-
 # vim: tabstop=4 shiftwidth=4 expandtab
 
+# WARNING: test-widget.c is more complete and is better maintained.
+
 import os, os.path
 import sys