output empty performance data value as value "U" to "indicate that the actual value couldn't be determined" (defined in https://nagios-plugins.org/doc/guidelines.html#AEN200) and do valid output You can view, comment on, or merge this pull request online at:
https://github.com/monitoring-plugins/monitoring-plugin-perl/pull/5 -- Commit Summary -- * output empty values as "U" -- File Changes -- M lib/Monitoring/Plugin/Performance.pm (9) -- Patch Links -- https://github.com/monitoring-plugins/monitoring-plugin-perl/pull/5.patch https://github.com/monitoring-plugins/monitoring-plugin-perl/pull/5.diff -- Reply to this email on GitHub: https://github.com/monitoring-plugins/monitoring-plugin-perl/pull/5
