pep8 fixes.
pep8 fixes.

Yusuke1987/openstack_template,citrix-openstack-build/nova,felixma/nova,mandeepdhami/nova,eharney/nova,cernops/nova,CiscoSystems/nova,Tehsmash/nova,saleemjaveds/https-github.com-openstack-nova,Juniper/nova,tudorvio/nova,affo/nova,cernops/nova,leilihh/novaha,mahak/nova,Metaswitch/calico-nova,devendermishrajio/nova,fnordahl/nova,russellb/nova,berrange/nova,nikesh-mahalka/nova,eneabio/nova,openstack/nova,noironetworks/nova,TwinkleChawla/nova,ntt-sic/nova,maheshp/novatest,SUSE-Cloud/nova,saleemjaveds/https-github.com-openstack-nova,houshengbo/nova_vmware_compute_driver,dstroppa/openstack-smartos-nova-grizzly,LoHChina/nova,hanlind/nova,SUSE-Cloud/nova,klmitch/nova,ruslanloman/nova,russellb/nova,ntt-sic/nova,Juniper/nova,DirectXMan12/nova-hacking,rrader/nova-docker-plugin,TwinkleChawla/nova,salv-orlando/MyRepo,joker946/nova,takeshineshiro/nova,affo/nova,watonyweng/nova,belmiromoreira/nova,projectcalico/calico-nova,Stavitsky/nova,sridevikoushik31/openstack,sacharya/nova,raildo/nova,Francis-Liu/animated-broccoli,DirectXMan12/nova-hacking,usc-isi/extra-specs,yrobla/nova,double12gzh/nova,bgxavier/nova,whitepages/nova,dstroppa/openstack-smartos-nova-grizzly,jianghuaw/nova,gspilio/nova,Triv90/Nova,zaina/nova,KarimAllah/nova,isyippee/nova,dims/nova,Stavitsky/nova,jianghuaw/nova,josephsuh/extra-specs,MountainWei/nova,iuliat/nova,edulramirez/nova,j-carpentier/nova,varunarya10/nova_test_latest,tealover/nova,tangfeixiong/nova,CCI-MOC/nova,mikalstill/nova,dawnpower/nova,ewindisch/nova,fajoy/nova,hanlind/nova,vmturbo/nova,CCI-MOC/nova,JioCloud/nova,cloudbase/nova,cloudbase/nova-virtualbox,sebrandon1/nova,Francis-Liu/animated-broccoli,alexandrucoman/vbox-nova-driver,maelnor/nova,psiwczak/openstack,petrutlucian94/nova,redhat-openstack/nova,berrange/nova,KarimAllah/nova,luogangyi/bcec-nova,eonpatapon/nova,houshengbo/nova_vmware_compute_driver,mmnelemane/nova,NoBodyCam/TftpPxeBootBareMetal,salv-orlando/MyRepo,devendermishrajio/nova_test_latest,vladikr/nova_drafts,klmitch/nova,psiwczak/openstack,bclau/nova,akash1808/nova,eneabio/nova,thomasem/nova,NeCTAR-RC/nova,Yusuke1987/openstack_template,sridevikoushik31/nova,yatinkumbhare/openstack-nova,Metaswitch/calico-nova,sridevikoushik31/openstack,NoBodyCam/TftpPxeBootBareMetal,devoid/nova,ted-gould/nova,josephsuh/extra-specs,zhimin711/nova,paulmathews/nova,shail2810/nova,alvarolopez/nova,yosshy/nova,gspilio/nova,gooddata/openstack-nova,gspilio/nova,citrix-openstack-build/nova,spring-week-topos/nova-week,BeyondTheClouds/nova,Juniper/nova,cloudbau/nova,MountainWei/nova,rajalokan/nova,leilihh/nova,psiwczak/openstack,ted-gould/nova,orbitfp7/nova,jeffrey4l/nova,akash1808/nova_test_latest,noironetworks/nova,salv-orlando/MyRepo,maoy/zknova,maheshp/novatest,savi-dev/nova,plumgrid/plumgrid-nova,apporc/nova,usc-isi/extra-specs,gooddata/openstack-nova,badock/nova,mikalstill/nova,BeyondTheClouds/nova,phenoxim/nova,TieWei/nova,Triv90/Nova,mahak/nova,sileht/deb-openstack-nova,akash1808/nova,Brocade-OpenSource/OpenStack-DNRM-Nova,kimjaejoong/nova,cyx1231st/nova,NewpTone/stacklab-nova,cloudbau/nova,bclau/nova,qwefi/nova,Juniper/nova,kimjaejoong/nova,viggates/nova,CEG-FYP-OpenStack/scheduler,vmturbo/nova,klmitch/nova,vmturbo/nova,bgxavier/nova,angdraug/nova,gooddata/openstack-nova,alaski/nova,Yuriy-Leonov/nova,NeCTAR-RC/nova,dims/nova,jianghuaw/nova,sridevikoushik31/nova,ruslanloman/nova,nikesh-mahalka/nova,edulramirez/nova,sebrandon1/nova,fajoy/nova,plumgrid/plumgrid-nova,yrobla/nova,sridevikoushik31/nova,adelina-t/nova,NewpTone/stacklab-nova,BeyondTheClouds/nova,Brocade-OpenSource/OpenStack-DNRM-Nova,qwefi/nova,thomasem/nova,adelina-t/nova,barnsnake351/nova,double12gzh/nova,rrader/nova-docker-plugin,imsplitbit/nova,sacharya/nova,watonyweng/nova,virtualopensystems/nova,zhimin711/nova,blueboxgroup/nova,rickerc/nova_audit,yatinkumbhare/openstack-nova,aristanetworks/arista-ovs-nova,rahulunair/nova,mikalstill/nova,rajalokan/nova,blueboxgroup/nova,CiscoSystems/nova,eonpatapon/nova,tianweizhang/nova,felixma/nova,badock/nova,shahar-stratoscale/nova,tangfeixiong/nova,usc-isi/nova,petrutlucian94/nova_dev,tanglei528/nova,silenceli/nova,rahulunair/nova,shootstar/novatest,akash1808/nova_test_latest,LoHChina/nova,cloudbase/nova,viggates/nova,spring-week-topos/nova-week,hanlind/nova,eharney/nova,virtualopensystems/nova,TieWei/nova,paulmathews/nova,russellb/nova,NoBodyCam/TftpPxeBootBareMetal,alvarolopez/nova,joker946/nova,isyippee/nova,maoy/zknova,eneabio/nova,maelnor/nova,projectcalico/calico-nova,KarimAllah/nova,leilihh/nova,eayunstack/nova,NewpTone/stacklab-nova,dstroppa/openstack-smartos-nova-grizzly,cloudbase/nova-virtualbox,aristanetworks/arista-ovs-nova,JioCloud/nova,shootstar/novatest,rajalokan/nova,CEG-FYP-OpenStack/scheduler,rickerc/nova_audit,bigswitch/nova,sileht/deb-openstack-nova,zaina/nova,ewindisch/nova,shahar-stratoscale/nova,devendermishrajio/nova_test_latest,phenoxim/nova,petrutlucian94/nova_dev,JianyuWang/nova,mgagne/nova,devendermishrajio/nova,apporc/nova,alexandrucoman/vbox-nova-driver,luogangyi/bcec-nova,CloudServer/nova,shail2810/nova,alaski/nova,iuliat/nova,yosshy/nova,maoy/zknova,bigswitch/nova,mandeepdhami/nova,mmnelemane/nova,tealover/nova,zzicewind/nova,usc-isi/nova,sridevikoushik31/nova,leilihh/novaha,eayunstack/nova,angdraug/nova,dawnpower/nova,cloudbase/nova,fajoy/nova,takeshineshiro/nova,openstack/nova,mahak/nova,belmiromoreira/nova,devoid/nova,savi-dev/nova,rajalokan/nova,maheshp/novatest,DirectXMan12/nova-hacking,scripnichenko/nova,usc-isi/extra-specs,OpenAcademy-OpenStack/nova-scheduler,houshengbo/nova_vmware_compute_driver,orbitfp7/nova,whitepages/nova,CloudServer/nova,JioCloud/nova_test_latest,Yuriy-Leonov/nova,vmturbo/nova,cernops/nova,yrobla/nova,petrutlucian94/nova,jianghuaw/nova,OpenAcademy-OpenStack/nova-scheduler,tianweizhang/nova,tudorvio/nova,mgagne/nova,aristanetworks/arista-ovs-nova,cyx1231st/nova,JioCloud/nova_test_latest,sileht/deb-openstack-nova,j-carpentier/nova,Tehsmash/nova,Triv90/Nova,rahulunair/nova,tanglei528/nova,zzicewind/nova,josephsuh/extra-specs,openstack/nova,redhat-openstack/nova,jeffrey4l/nova,klmitch/nova,gooddata/openstack-nova,varunarya10/nova_test_latest,sebrandon1/nova,silenceli/nova,raildo/nova,savi-dev/nova,usc-isi/nova,fnordahl/nova,sridevikoushik31/openstack,JianyuWang/nova,vladikr/nova_drafts,paulmathews/nova,barnsnake351/nova,imsplitbit/nova,scripnichenko/nova