Pcs should offer non-intrusive second guessing

[jnpkrn]

Example scenario:

$ pcs resource describe ocf:heartbeat:dummy
Error: Agent 'ocf:heartbeat:dummy' is not installed or does not provide valid metadata: Metadata query for ocf:heartbeat:dummy failed: Input/output error

Finicky user may expect:

Error: Agent 'ocf:heartbeat:dummy' is not installed or does not provide valid metadata.
Did you mean 'ocf:heartbeat:Dummy'?

There is quite a lot of theory (+ ready-to-use implementations) to leverage, e.g. https://en.wikipedia.org/wiki/Levenshtein_distance

[jnpkrn]

See also: https://lists.clusterlabs.org/pipermail/users/2018-August/015474.html