PYTHONHASHSEED bug fix in test_utils
PYTHONHASHSEED bug fix in test_utils

fixed test MetadataToDictTestCase.test_dict_to_metadata
to work properly with random PYTHONHASHSEED

Partial-Bug: #1348818

Change-Id: I25f79de17992311aa4eb9abc50b29e3563d09507

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