found a much simpler way to fix the go vet problem
found a much simpler way to fix the go vet problem

erSitzt/cadvisor,linux-on-ibm-z/cadvisor,erSitzt/cadvisor,erSitzt/cadvisor,erSitzt/cadvisor,erSitzt/cadvisor,linux-on-ibm-z/cadvisor,linux-on-ibm-z/cadvisor