right syntax for countdown to actually work (bug 653475) -a (bug #653475)

apps/amo/decorators.py

@@ -101,7 +101,8 @@ def set_modified_on(f):
             for obj in objs:
                 task_log.info('Delaying setting modified on object: %s, %s' %
                               (obj.__class__.__name__, obj.pk))
-                set_modified_on_object.delay(obj,
-                                             countdown=settings.MODIFIED_DELAY)
+                set_modified_on_object.apply_async(
+                                            args=[obj], kwargs=None,
+                                            countdown=settings.MODIFIED_DELAY)
         return result
     return wrapper

settings.py

@@ -897,7 +897,7 @@ RESPONSYS_ID = ''
 FILE_VIEWER_SIZE_LIMIT = 1048576
 
 # How long to delay modify updates to cope with alleged NFS slowness.
-MODIFIED_DELAY = 120
+MODIFIED_DELAY = 60
 
 # This is a list of dictionaries that we should generate compat info for.
 # app: should match amo.FIREFOX.id.