[Pacemaker] OCF_RESKEY_CRM_meta_{ordered,notify,interleave}

[Florian Haas]

Lars (lmb), or Andrew -- maybe one of you remembers what this was all about.

In this commit, Lars enabled the
OCF_RESKEY_CRM_meta_{ordered,notify,interleave} attributes to be
injected into the environment of RAs:
https://github.com/ClusterLabs/pacemaker/commit/b0ba01f61086f073be69db3e6beb0914642f79d9

Then that change was almost immediately backed out:
https://github.com/ClusterLabs/pacemaker/commit/b33d3bf5376ab59baa435086c803b9fdaf6de504

And since then, at some point evidently only interleave and notify
made it back in. Any specific reason for omitting ordered? I happen to
have a pretty good use case for an ordered-clone RA, and it would be
handy to be able to test whether clone ordering has been enabled.

All insights are much appreciated.

Cheers,
Florian

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