Tianli Feng ee048851f5
Replace 'discovered_master' with 'discovered_cluster_manager' in 'GET Cat Health' API (#2438)
* Replace 'discovered_master' with 'discovered_cluster_manager' in the table header of `GET Cat Health` API, to promote inclusive language.
* Add `dcm` as the alias for the table header `discovered_cluster_manager`
* Add `discovered_master` as the alias for the table header `discovered_cluster_manager`, for keeping compatibility when using `GET _cat/nodes?v&h=discovered_master` to show the specific column only.
* Add YAML rest test

Signed-off-by: Tianli Feng <ftianli@amazon.com>
2022-03-18 15:04:03 -07:00
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