fix style

benchmark/cluster/v2/trainer.yaml

@@ -28,7 +28,7 @@ spec:
         - name: TOPOLOGY
           value: ""
         - name: ENTRY
-          value: "cd /workspace && python /workspace/vgg16.py"
+          value: "cd /workspace && MKL_NUM_THREADS=1 python /workspace/vgg16.py"
         - name: TRAINER_PACKAGE
           value: "/workspace"
         - name: PADDLE_INIT_PORT

benchmark/cluster/v2/vgg16.py

@@ -144,4 +144,3 @@ def main():
 
 if __name__ == '__main__':
     main()
-