[DOCS] Fix principal access_granted attribute (elastic/x-pack-elasticsearch#2257)
Original commit: elastic/x-pack-elasticsearch@98f0d43196a1dc09c22cda12ca6d0ad3a8905bd3
@@ -221,7 +221,7 @@ The log level determines which attributes are included in a log entry.
(request was received on the transport channel),
`local_node` (the local node issued the request).
| `origin_address` | The IP address from which the request originated.
-| `principal` | The principal (username) that failed authentication.
+| `principal` | The principal (username) that passed authentication.
| `action` | The name of the action that was executed.
| `request` | The type of request that was executed.
| `indices` | A comma-separated list of indices this request
