[jhbuild] Update tests to match Config's updated constructor (GNOME bug 646510)

[Craig Keogh <cskeogh src gnome org>]

commit c8dc4a9421f63c277ba1960144b30677e7cf977d
Author: Craig Keogh <cskeogh adam com au>
Date:   Sun May 20 22:13:37 2012 +0930

    Update tests to match Config's updated constructor (GNOME bug 646510)

 tests/tests.py |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/tests/tests.py b/tests/tests.py
index bf02843..ff21742 100644
--- a/tests/tests.py
+++ b/tests/tests.py
@@ -110,7 +110,7 @@ class JhbuildConfigTestCase(unittest.TestCase):
 
     def make_config(self):
         temp_dir = self.make_temp_dir()
-        config = TestConfig()
+        config = TestConfig(None)
         config.checkoutroot = os.path.abspath(os.path.join(temp_dir, 'checkout'))
         config.prefix = os.path.abspath(os.path.join(temp_dir, 'prefix'))
         config.top_builddir = os.path.join(config.prefix, '_jhbuild')