Send correct param to elasticsearch class

Change-Id: I310df2c8d1850556a5de3c12848f2c6e3456e355

modules/openstack_project/manifests/wiki.pp

@@ -59,7 +59,7 @@ class openstack_project::wiki (
 
   class { 'elasticsearch':
     discover_nodes => ['localhost'],
-    elasticsearch_version => '0.90.5',
+    version        => '0.90.5',
   }
 
 }