Ali Beyad 5190a05b75 Improves error message on non-upgraded security index (elastic/x-pack-elasticsearch#2061)
This commit improves the error message in 6x if the security index has
not been upgraded, and warns the user that the native realm will not be
functional until the upgrade API is run.

Original commit: elastic/x-pack-elasticsearch@710b7634b4
2017-07-21 15:56:15 -04:00
..