`ocf_local_nodename` incorrectly detect pacemaker version causing incorrect behavior

[Sildulir]

Since https://github.com/ClusterLabs/pacemaker/commit/67e342d78f1c0972dd14d8a3f731b06bc8208747 pacemakerd -$ return two lines containing matching the regex used by ocf_local_nodename to detect the version of pacemaker used.

This break version detection and cause ocf_local_nodename to use uname -n instead of crm_node -n to get the name of the local node. Breaking any agent relying on this function on a node that doesn't use its hostname as its nodename.

I noticed this problem when attempting to use ganesha_grace from the GlusterFS project, but this function seems to be used by agents in this repository too (and using this function should be the correct thing to do anyway).

[oalbrigt]

Thanks. I'll look into it.