title: Error: Unrecognized option: --packages
body: <p>I'm porting an existing script from BigInsights to Spark on Bluemix.  I'm trying to run the following against Spark on Bluemix:</p>
  
  <pre><code>./spark-submit.sh --vcap ./vcap.json --deploy-mode cluster \
      --master https://x.x.x.x:8443 --jars ./truststore.jar \
      --packages org.elasticsearch:elasticsearch-spark_2.10:2.3.0 \
      ./export_to_elasticsearch.py ...
  </code></pre>
  
  <p>However, I get the following error:</p>
  
  <pre><code>Error: Unrecognized option: --packages
  </code></pre>
  
  <p>How can I pass the <code>--packages</code> parameter?</p>