Werk #6045: df: Disable for docker containers

ComponentChecks & Agents
Titledf: Disable for docker containers
Date2018-04-30 07:01:22
Check_MK EditionCheck_MK Raw Edition (CRE)
Check_MK Version1.6.0i1,1.5.0b3
LevelTrivial Change
ClassBug Fix
CompatibilityCompatible - no manual interaction needed