Fix Elasticsearch helm test indentation

This indents the closing {{ end }} for the check for executing the 
Elasticsearch test that checks the snapshot repositories

Change-Id: I77ebb1af7ee648cc9787665bfb81dfbb1a30663a

elasticsearch/templates/bin/_helm-tests.sh.tpl

@@ -49,7 +49,7 @@ function check_snapshot_repositories () {
      echo "FAIL: The snapshot repository $respository does not exist! Exiting now";
      exit 1;
   fi
-{{ end }}
+  {{ end }}
 }
 
 function remove_test_index () {