Synchronize docstring with actual implementation
Synchronize docstring with actual implementation

This method no longer calls eventlet.sleep(0) since it's implicit any
time a database connection is checked out (which is a few times each
loop in this method).

Change-Id: Iff3c2e0fb2f7a11092b4d25c03a20beb3b24c91e

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