Werk #22783: nfsiostat: support one line per mount

Component	Checks & agents
Title	nfsiostat: support one line per mount
Date	Oct 19, 2026
Level	Trivial Change
Class	Bug Fix
Compatibility	Compatible - no manual interaction needed
Checkmk versions & editions	3.0.0b1 Not yet released Checkmk Community, Checkmk Pro, Checkmk Ultimate, Checkmk Cloud, Checkmk Ultimate MT 2.5.0p18 Not yet released Checkmk Community, Checkmk Pro, Checkmk Ultimate, Checkmk Cloud, Checkmk Ultimate MT 2.4.0p40 Not yet released Checkmk Community, Checkmk Pro, Checkmk Ultimate, Checkmk Cloud, Checkmk Ultimate MT

If the nfsiostat agent section of a host contained the statistics of each NFS mount on a separate line instead of the single line the shipped agent plugin produces, the NFS IO services of that host could not be checked, and the crash report showed ValueError: too many values to unpack (expected 1).

The section is now parsed regardless of how its content is split into lines, and all mounts are monitored.

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