Ian Barwick 4c7c681a14 repmgr: have "cluster show" exit with a non-zero value if issues detected ...

If any issues are detected (e.g. node not reachable, unexpected node status
etc.), "repmgr cluster show" returns exit code 25 ("ERR_NODE_STATUS").

Note that exit code 25 was introduced recently as "ERR_CLUSTER_CHECK",
however it makes sense to use this to indicate issues detected by any
command which can detect node issues.

Addresses GitHub #456.

2018-07-05 11:03:48 +09:00

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