fix test_client bug

python/examples/detection/ssd_vgg16_300_240e_voc/test_client.py

@@ -33,8 +33,9 @@ im = preprocess(sys.argv[1])
 fetch_map = client.predict(
     feed={
         "image": im,
+        "im_shape": np.array([512, 512]),
         "scale_factor": np.array([1.0, 1.0]).reshape(-1),
     },
     fetch=["save_infer_model/scale_0.tmp_1"],
     batch=False)
-print(fetch_map)
+print('ysl-----', fetch_map)