anchor.diff:  roles are passed to the remote clusters. A remote cluster checks the user's
   roles against its local role definitions to determine which indices the user
   is allowed to access.
  -
  -NOTE: For the moment, cross cluster search with security enabled does not
  -support using wildcards for either cluster or index names.
   
   To use cross cluster search with secured clusters:
   
  
positive.code: Next, set up a role called `cluster_two_logs` on both cluster `one` and
  cluster `two`.
  
  On cluster `one`, this role allows the user to query indices called `logs-` on
  cluster `two`:
  
  [source,js]
  -----------------------------------------------------------
  
negative.code:   "indices": [
      {
        "names": [
          "*:*"
        ],
        "privileges": [
          "read"
  