Werk #6067: diskstat: Fixed error complaining about unknown diskstat_diskless_pattern

ComponentChecks & Agents
Titlediskstat: Fixed error complaining about unknown diskstat_diskless_pattern
Date2018-05-14 10:32:14
Check_MK EditionCheck_MK Raw Edition (CRE)
Check_MK Version1.6.0i1,1.5.0b4
LevelTrivial Change
ClassBug Fix
CompatibilityCompatible - no manual interaction needed