Fix exception by passing timeout as None
Fix exception by passing timeout as None

The call method takes a new timeout argument, but not all uses of it
were updated to pass the new argument.

Change-Id: Ie4377419aafa5606ade803f8e4cd715cb53b1547

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