Make consistent with docs in 5.0
Make consistent with docs in 5.0

I just wanted to make the change consistent with what we have in 5.0 docs.

See https://github.com/elastic/elasticsearch/blob/5.0/docs/reference/mapping/dynamic-mapping.asciidoc
strapdata/elassandra-test,strapdata/elassandra-test,strapdata/elassandra-test,strapdata/elassandra-test,strapdata/elassandra-test,strapdata/elassandra-test,strapdata/elassandra-test