storage: Fixed backend test
storage: Fixed backend test

./backend_test.go:23: multiple-value batchTx.UnsafeRange() in single-value context

msanterre/etcd,rnaveiras/etcd,coreos/etcd,westhood/etcd,linuxcer/etcd,ktateish/etcd,shawnps/etcd,armstrongli/etcd,OyTao/etcd_learning,visheshnp/etcd,fasaxc/etcd,insequent/etcd,mqliang/etcd,jlamillan/etcd,chenbaihu/etcd,mickep76/etcd,etcd-io/etcd,bdarnell/etcd,tamird/etcd,beni55/etcd,cognusion/etcd,a-robinson/etcd,freeloop1114/etcd,glycerine/etcd,chipironcin/etcd,hongbinz/etcd,wantonsolutions/dinv-etcd,gouyang/etcd,cockroachdb/etcd,xychu/etcd,kkaneda/etcd,sebrandon1/etcd,combk8s/etcd,mqliang/etcd,HideoYamauchi/etcd,sayden/etcd,armstrongli/etcd,mike-lerch/etcd,mickep76/etcd,ravigadde/etcd,dnaeon/etcd,fanminshi/etcd,oscarrr110/etcd,iamqizhao/etcd,bluebreezecf/etcd,luxas/etcd,qqsun8819/etcd,joshix/etcd,mkumatag/etcd,CrazyJvm/etcd,svdata/etcd,cchamplin/etcd,siddontang/etcd,li-ang/etcd,swingbach/etcd,buaazp/etcd,xiang90/etcd,mqliang/etcd,joshix/etcd,tguangch/etcd,jefby/etcd,shawnps/etcd,etcd-io/etcd,glevand/coreos--etcd,qqsun8819/etcd,westhood/etcd,onlyjob/etcd,xdlinear/etcd,xdlinear/etcd,jchauncey/etcd,jefby/etcd,hongchaodeng/etcd,cchamplin/etcd,honeyqa/etcd,rchicoli/etcd,mkumatag/etcd,lorneli/etcd,hongchaodeng/etcd,hroyrh/etcd,akauppi/etcd,cockroachdb/etcd,fanminshi/etcd,rnaveiras/etcd,raoofm/etcd,xychu/etcd,ajityagaty/etcd,zaphod-concur/etcd,msanterre/etcd,pauldallen/etcd,gae123/etcd,delkyd/etcd,plasticbox/etcd,betawaffle/etcd,ktateish/etcd,whuwxl/etcd,cognusion/etcd,jeremyeder/etcd,jlamillan/etcd,rchicoli/etcd,glycerine/etcd,endocode/etcd,sayden/etcd,ajityagaty/etcd,dnaeon/etcd,zaphod-concur/etcd,dannysauer/etcd,purpleidea/etcd,wowsoso/etcd,wantonsolutions/dinv-etcd,purpleidea/etcd,Yhgenomics/etcd,a-robinson/etcd,swingbach/etcd,improbable-io/etcd,hongbinz/etcd,visheshnp/etcd,freeloop1114/etcd,siddontang/etcd,jonboulle/etcd,chenbaihu/etcd,akauppi/etcd,lorneli/etcd,sebrandon1/etcd,kkaneda/etcd,arthurcolle/etcd,wowsoso/etcd,OyTao/etcd_learning,li-ang/etcd,mike-lerch/etcd,yudai/etcd,Eagle-X/etcd,raoofm/etcd,Winslett/etcd,heyitsanthony/etcd,luxas/etcd,linuxcer/etcd,vimalk78/etcd,combk8s/etcd,sinsharat/etcd,StorReduce/etcd,gyuho/etcd,HideoYamauchi/etcd,svdata/etcd,gae123/etcd,xiang90/etcd,oscarrr110/etcd,beni55/etcd,sofuture/etcd,pauldallen/etcd,fasaxc/etcd,insequent/etcd,arthurcolle/etcd,lumjjb/etcd,glevand/coreos--etcd,Yhgenomics/etcd,Winslett/etcd,coreos/etcd,Timer/etcd,Eagle-X/etcd,nekto0n/etcd,Timer/etcd,delkyd/etcd,sinsharat/etcd,giantswarm/etcd,asim/etcd,honeyqa/etcd,gityf/etcd,wantonsolutions/dinv-etcd,mkumatag/etcd,lumjjb/etcd,sofuture/etcd,onlyjob/etcd,yichengq/etcd,TheHippo/etcd,fgbreel/etcd,rnaveiras/etcd,YuleiXiao/etcd,jonboulle/etcd,fgbreel/etcd,achanda/etcd,tguangch/etcd,gouyang/etcd,YuleiXiao/etcd,StorReduce/etcd,giantswarm/etcd,buaazp/etcd,nekto0n/etcd,handsomesun/etcd,ravigadde/etcd,hroyrh/etcd,ajityagaty/etcd,handsomesun/etcd,jeremyeder/etcd,fasaxc/etcd,chipironcin/etcd,tamird/etcd,achanda/etcd,jchauncey/etcd,dannysauer/etcd,vimalk78/etcd,iamqizhao/etcd,TheHippo/etcd,yudai/etcd,etcd-io/etcd,plasticbox/etcd,whuwxl/etcd,betawaffle/etcd,yichengq/etcd,CrazyJvm/etcd,endocode/etcd,gityf/etcd,bdarnell/etcd,gyuho/etcd,bluebreezecf/etcd,asim/etcd,heyitsanthony/etcd,improbable-io/etcd