fix unittests. test=develop

Author: heavengate

python/paddle/fluid/tests/unittests/test_multiprocess_dataloader_exception.py

@@ -180,7 +180,7 @@ def _collate_fn(sample_list):
                 indices_queue.put(None)
                 _worker_loop(loader._dataset, 0, indices_queue,
                              loader._data_queue, loader._workers_done_event,
-                             True, _collate_fn, _init_fn, 0, 1,
+                             True, _collate_fn, True, _init_fn, 0, 1,
                              loader._use_shared_memory)
                 self.assertTrue(False)
         except AssertionError:
@@ -224,7 +224,7 @@ def _collate_fn(sample_list):
                 loader._workers_done_event.set()
                 _worker_loop(loader._dataset, 0, indices_queue,
                              loader._data_queue, loader._workers_done_event,
-                             True, _collate_fn, _init_fn, 0, 1,
+                             True, _collate_fn, True, _init_fn, 0, 1,
                              loader._use_shared_memory)
                 self.assertTrue(True)
         except AssertionError: