fix typo in drelephant cookbook
fix typo in drelephant cookbook

hopshadoop/hopsworks-chef,hopshadoop/hopsworks-chef,ekeroid/hopsworks-chef,ekeroid/hopsworks-chef,hopshadoop/hopsworks-chef,ekeroid/hopsworks-chef,hopshadoop/hopsworks-chef,ekeroid/hopsworks-chef