wsgi: Make comments a bit clearer.

caucase/wsgi.py

@@ -152,8 +152,8 @@ class Application(object):
     """
     WSGI entry point
     """
-    try: # Convert ApplicationError subclasses in error responses
-      try: # Convert non-wsgi exceptions into WSGI exceptions
+    try: # Convert ApplicationError subclasses into error responses
+      try: # Convert exceptions into ApplicationError subclass exceptions
         path_item_list = [x for x in environ['PATH_INFO'].split('/') if x]
         try:
           context_id, base_path = path_item_list[:2]