--- debderiver
+++ debderiver_patch8.py
@@ -368,7 +368,8 @@
         sys.exit(1)
 
     # Validate operating system level.
-    for key in ('os', 'base_dir', 'description', 'signing_key', 'distributions'):
+    for key in ('os', 'base_dir', 'description', 'signing_key',
+                'distributions'):
         if not main_conf.has_key(key):
             sys.stderr.write('Missing key: %s\n' % key)
             sys.exit(1)