Can't use inner classes, shows up as a leak in the lint environment.

greentest/test__pywsgi.py

@@ -1446,7 +1446,6 @@ class Test414(TestCase):
 
 class Test663(TestCase):
 
-    def init_logger(self):
     # Something that gets wrapped in a LoggingLogAdapter
     class Logger(object):
         accessed = None
@@ -1462,7 +1461,8 @@ class Test663(TestCase):
         def get_thing(self):
             return self.thing
 
-        return Logger()
+    def init_logger(self):
+        return self.Logger()
 
     def test_proxy_methods_on_log(self):
         # An object that looks like a logger gets wrapped