Remove useless join in nova.virt.vmwareapi.vm_util
Remove useless join in nova.virt.vmwareapi.vm_util

This change replaces in nova.virt.vmwareapi.vm_util the pattern
''.join(['fo...o'], ['b...ar']) by the pattern 'fo...ob...ar' which
avoids runtime string concatenation.

Change-Id: If23d8377acde2c3419b67ca11b03a1c898561c77

openstack/nova,felixma/nova,JianyuWang/nova,affo/nova,hanlind/nova,iuliat/nova,ruslanloman/nova,devendermishrajio/nova,zaina/nova,hanlind/nova,mgagne/nova,eonpatapon/nova,dawnpower/nova,JianyuWang/nova,devendermishrajio/nova,nikesh-mahalka/nova,joker946/nova,CloudServer/nova,Metaswitch/calico-nova,NeCTAR-RC/nova,alexandrucoman/vbox-nova-driver,sebrandon1/nova,openstack/nova,rahulunair/nova,cernops/nova,mikalstill/nova,tealover/nova,akash1808/nova,alvarolopez/nova,Yusuke1987/openstack_template,LoHChina/nova,phenoxim/nova,watonyweng/nova,alexandrucoman/vbox-nova-driver,sebrandon1/nova,cloudbase/nova,NeCTAR-RC/nova,sebrandon1/nova,eonpatapon/nova,cyx1231st/nova,maelnor/nova,thomasem/nova,Juniper/nova,scripnichenko/nova,takeshineshiro/nova,Tehsmash/nova,silenceli/nova,klmitch/nova,double12gzh/nova,isyippee/nova,JioCloud/nova,rajalokan/nova,cyx1231st/nova,kimjaejoong/nova,JioCloud/nova_test_latest,fnordahl/nova,fnordahl/nova,j-carpentier/nova,adelina-t/nova,zaina/nova,yatinkumbhare/openstack-nova,gooddata/openstack-nova,Juniper/nova,projectcalico/calico-nova,isyippee/nova,gooddata/openstack-nova,badock/nova,bigswitch/nova,klmitch/nova,bigswitch/nova,MountainWei/nova,Juniper/nova,double12gzh/nova,ted-gould/nova,rahulunair/nova,adelina-t/nova,thomasem/nova,mahak/nova,jianghuaw/nova,cloudbase/nova,zzicewind/nova,BeyondTheClouds/nova,petrutlucian94/nova,CCI-MOC/nova,Tehsmash/nova,tangfeixiong/nova,belmiromoreira/nova,cloudbase/nova-virtualbox,mandeepdhami/nova,edulramirez/nova,yatinkumbhare/openstack-nova,alaski/nova,Francis-Liu/animated-broccoli,affo/nova,CloudServer/nova,TwinkleChawla/nova,orbitfp7/nova,varunarya10/nova_test_latest,shail2810/nova,LoHChina/nova,dims/nova,bgxavier/nova,cernops/nova,maelnor/nova,Stavitsky/nova,CCI-MOC/nova,Yusuke1987/openstack_template,jianghuaw/nova,rahulunair/nova,dawnpower/nova,blueboxgroup/nova,dims/nova,klmitch/nova,Juniper/nova,raildo/nova,phenoxim/nova,devendermishrajio/nova_test_latest,gooddata/openstack-nova,BeyondTheClouds/nova,ruslanloman/nova,apporc/nova,mahak/nova,vmturbo/nova,tangfeixiong/nova,zhimin711/nova,Metaswitch/calico-nova,kimjaejoong/nova,TwinkleChawla/nova,noironetworks/nova,BeyondTheClouds/nova,cloudbase/nova,vmturbo/nova,rajalokan/nova,alvarolopez/nova,klmitch/nova,openstack/nova,noironetworks/nova,varunarya10/nova_test_latest,mgagne/nova,edulramirez/nova,jeffrey4l/nova,CEG-FYP-OpenStack/scheduler,akash1808/nova_test_latest,blueboxgroup/nova,mikalstill/nova,silenceli/nova,hanlind/nova,cernops/nova,mahak/nova,jianghuaw/nova,mmnelemane/nova,shail2810/nova,iuliat/nova,watonyweng/nova,cloudbase/nova-virtualbox,yosshy/nova,tudorvio/nova,devendermishrajio/nova_test_latest,scripnichenko/nova,barnsnake351/nova,j-carpentier/nova,rajalokan/nova,akash1808/nova,jianghuaw/nova,CEG-FYP-OpenStack/scheduler,apporc/nova,yosshy/nova,joker946/nova,zzicewind/nova,jeffrey4l/nova,tudorvio/nova,nikesh-mahalka/nova,mikalstill/nova,badock/nova,Francis-Liu/animated-broccoli,vmturbo/nova,alaski/nova,bgxavier/nova,petrutlucian94/nova,JioCloud/nova,akash1808/nova_test_latest,barnsnake351/nova,raildo/nova,tealover/nova,vmturbo/nova,felixma/nova,belmiromoreira/nova,takeshineshiro/nova,Stavitsky/nova,rajalokan/nova,JioCloud/nova_test_latest,projectcalico/calico-nova,orbitfp7/nova,MountainWei/nova,gooddata/openstack-nova,zhimin711/nova,whitepages/nova,whitepages/nova,ted-gould/nova,mandeepdhami/nova,mmnelemane/nova