Remove use of builtin name
Remove use of builtin name

Change the use of the name 'filter' to 'filter_' so that it doesn't
conflict with the builtin function 'filter'.

Change-Id: Iaa18aa54fbd8578c3b0d3313540393541c002720
Closes-Bug:  #1459826

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