libvirt: pass instance to a log() call in the standard way
libvirt: pass instance to a log() call in the standard way

If we pass the instance in the correct way, then we get nicely
formatted logs which are easier for admins to use.

Change-Id: I27ab372a3388e2aa02491da07c616807bcbb14ef

MountainWei/nova,jianghuaw/nova,affo/nova,virtualopensystems/nova,cloudbase/nova,sebrandon1/nova,cloudbase/nova,alexandrucoman/vbox-nova-driver,zhimin711/nova,akash1808/nova,belmiromoreira/nova,klmitch/nova,openstack/nova,cernops/nova,Stavitsky/nova,eonpatapon/nova,zaina/nova,LoHChina/nova,barnsnake351/nova,Metaswitch/calico-nova,tanglei528/nova,openstack/nova,Juniper/nova,akash1808/nova_test_latest,takeshineshiro/nova,badock/nova,eharney/nova,viggates/nova,luogangyi/bcec-nova,hanlind/nova,Tehsmash/nova,openstack/nova,orbitfp7/nova,NeCTAR-RC/nova,mahak/nova,apporc/nova,cernops/nova,alvarolopez/nova,vmturbo/nova,gooddata/openstack-nova,rahulunair/nova,maelnor/nova,alaski/nova,edulramirez/nova,tangfeixiong/nova,tangfeixiong/nova,klmitch/nova,scripnichenko/nova,joker946/nova,angdraug/nova,cloudbase/nova,isyippee/nova,mikalstill/nova,OpenAcademy-OpenStack/nova-scheduler,BeyondTheClouds/nova,gooddata/openstack-nova,bgxavier/nova,bigswitch/nova,cyx1231st/nova,sacharya/nova,eonpatapon/nova,watonyweng/nova,berrange/nova,sebrandon1/nova,Francis-Liu/animated-broccoli,silenceli/nova,alvarolopez/nova,rahulunair/nova,rajalokan/nova,shahar-stratoscale/nova,blueboxgroup/nova,cyx1231st/nova,akash1808/nova,BeyondTheClouds/nova,rrader/nova-docker-plugin,dawnpower/nova,redhat-openstack/nova,jianghuaw/nova,badock/nova,cloudbase/nova-virtualbox,sacharya/nova,j-carpentier/nova,Metaswitch/calico-nova,CEG-FYP-OpenStack/scheduler,noironetworks/nova,varunarya10/nova_test_latest,devoid/nova,ruslanloman/nova,yosshy/nova,double12gzh/nova,yosshy/nova,CCI-MOC/nova,phenoxim/nova,tudorvio/nova,petrutlucian94/nova_dev,JioCloud/nova,mgagne/nova,rrader/nova-docker-plugin,ewindisch/nova,cloudbase/nova-virtualbox,orbitfp7/nova,luogangyi/bcec-nova,belmiromoreira/nova,mmnelemane/nova,varunarya10/nova_test_latest,eayunstack/nova,zaina/nova,petrutlucian94/nova,CiscoSystems/nova,rajalokan/nova,blueboxgroup/nova,klmitch/nova,shail2810/nova,redhat-openstack/nova,j-carpentier/nova,saleemjaveds/https-github.com-openstack-nova,shail2810/nova,devendermishrajio/nova_test_latest,TwinkleChawla/nova,rahulunair/nova,jeffrey4l/nova,ewindisch/nova,tianweizhang/nova,CiscoSystems/nova,leilihh/nova,bgxavier/nova,watonyweng/nova,mahak/nova,petrutlucian94/nova,silenceli/nova,cernops/nova,Francis-Liu/animated-broccoli,hanlind/nova,barnsnake351/nova,mmnelemane/nova,hanlind/nova,tealover/nova,fnordahl/nova,ruslanloman/nova,noironetworks/nova,vmturbo/nova,double12gzh/nova,klmitch/nova,JianyuWang/nova,mahak/nova,affo/nova,tudorvio/nova,vladikr/nova_drafts,mikalstill/nova,dawnpower/nova,leilihh/novaha,CEG-FYP-OpenStack/scheduler,whitepages/nova,Tehsmash/nova,berrange/nova,edulramirez/nova,Juniper/nova,gooddata/openstack-nova,CloudServer/nova,devendermishrajio/nova,tealover/nova,spring-week-topos/nova-week,JioCloud/nova_test_latest,takeshineshiro/nova,JioCloud/nova,Juniper/nova,projectcalico/calico-nova,bigswitch/nova,MountainWei/nova,iuliat/nova,adelina-t/nova,JianyuWang/nova,Yusuke1987/openstack_template,alexandrucoman/vbox-nova-driver,leilihh/novaha,angdraug/nova,maelnor/nova,vmturbo/nova,raildo/nova,thomasem/nova,CCI-MOC/nova,phenoxim/nova,ted-gould/nova,zhimin711/nova,felixma/nova,akash1808/nova_test_latest,viggates/nova,kimjaejoong/nova,jeffrey4l/nova,devendermishrajio/nova_test_latest,mandeepdhami/nova,zzicewind/nova,joker946/nova,alaski/nova,whitepages/nova,isyippee/nova,sebrandon1/nova,ted-gould/nova,raildo/nova,scripnichenko/nova,NeCTAR-RC/nova,vladikr/nova_drafts,nikesh-mahalka/nova,jianghuaw/nova,JioCloud/nova_test_latest,spring-week-topos/nova-week,saleemjaveds/https-github.com-openstack-nova,zzicewind/nova,felixma/nova,petrutlucian94/nova_dev,thomasem/nova,adelina-t/nova,rajalokan/nova,leilihh/nova,dims/nova,Stavitsky/nova,gooddata/openstack-nova,rajalokan/nova,tanglei528/nova,mikalstill/nova,LoHChina/nova,CloudServer/nova,eharney/nova,shahar-stratoscale/nova,Juniper/nova,jianghuaw/nova,kimjaejoong/nova,devoid/nova,BeyondTheClouds/nova,tianweizhang/nova,eayunstack/nova,apporc/nova,projectcalico/calico-nova,TwinkleChawla/nova,nikesh-mahalka/nova,Yusuke1987/openstack_template,dims/nova,OpenAcademy-OpenStack/nova-scheduler,fnordahl/nova,devendermishrajio/nova,iuliat/nova,yatinkumbhare/openstack-nova,mandeepdhami/nova,vmturbo/nova,yatinkumbhare/openstack-nova,mgagne/nova,virtualopensystems/nova