fix logging var in centos example env
fix logging var in centos example env

edtubillara/ursula,wupeiran/ursula,rongzhus/ursula,pgraziano/ursula,blueboxgroup/ursula,wupeiran/ursula,knandya/ursula,panxia6679/ursula,nirajdp76/ursula,pgraziano/ursula,blueboxgroup/ursula,twaldrop/ursula,wupeiran/ursula,blueboxgroup/ursula,ddaskal/ursula,knandya/ursula,fancyhe/ursula,lihkin213/ursula,twaldrop/ursula,lihkin213/ursula,ddaskal/ursula,lihkin213/ursula,channus/ursula,edtubillara/ursula,rongzhus/ursula,pgraziano/ursula,lihkin213/ursula,knandya/ursula,edtubillara/ursula,ddaskal/ursula,channus/ursula,knandya/ursula,wupeiran/ursula,pgraziano/ursula,blueboxgroup/ursula,ddaskal/ursula,panxia6679/ursula,fancyhe/ursula,panxia6679/ursula,nirajdp76/ursula,twaldrop/ursula,channus/ursula,nirajdp76/ursula,nirajdp76/ursula,fancyhe/ursula,rongzhus/ursula,edtubillara/ursula,channus/ursula,panxia6679/ursula,fancyhe/ursula,twaldrop/ursula,rongzhus/ursula