message: fix encryption get_data.sh bug
diff: wget --no-check-certificate https://paddle-serving.bj.bcebos.com/uci_housing_example/encrypt.tar.gz
  tar -xzf encrypt.tar.gz
  -cp -rvf ../fit_a_line/uci_housing_model .
  -cp -rvf ../fit_a_line/uci_housing_client .
  +wget --no-check-certificate https://paddle-serving.bj.bcebos.com/uci_housing.tar.gz
  +tar -xzf uci_housing.tar.gz
  