Fix: Invoke-IcingaCheckPartitionSpace to report unknown if no usage data was found#471

LordHepipud merged 1 commit intomasterIcinga/icinga-powershell-plugins:masterfrom

fix/partition_plugin_should_report_unknown_for_missing_usage_dataIcinga/icinga-powershell-plugins:fix/partition_plugin_should_report_unknown_for_missing_usage_dataCopy head branch name to clipboard