Check_MK Werk 6651: Single CPU utilization, apply Werk 6735: don't double count guest cputime in total cputime

ID: 6651 Title: Single CPU utilization, apply Werk 6735: don't double count guest cputime in total cputime Component: Checks & agents Level: 1 Class: Bug fix Version: 1.6.0i1 Linux kernel includes guest cputime in user cputime and thus guest cputime must not be added when calculating total cputime for each core. This bugfix was already implement in Werk 6735 for the all cores combined total CPU utilization. Test are included to verify the correct behavior.