fix(discovery_test.go) protect the garbageHandler by a lock
fix(discovery_test.go) protect the garbageHandler by a lock

princeqjzh/etcd,QuantiumTechnology/etcd,vimalk78/etcd,betawaffle/etcd,handsomesun/etcd,imzhulei/etcd,pigfoot/etcd,lorneli/etcd,StorReduce/etcd,whuwxl/etcd,Eagle-X/etcd,hongchaodeng/etcd,jravetch/etcd,fgbreel/etcd,hzy001/etcd,cockroachdb/etcd,lorneli/etcd,chipironcin/etcd,junxu/etcd,xdlinear/etcd,betawaffle/etcd,sinsharat/etcd,bdarnell/etcd,jchauncey/etcd,csuideal/etcd,mitake/etcd,offscale/etcd,freeloop1114/etcd,qiaochao911/etcd,a-robinson/etcd,gosharplite/etcd,freeloop1114/etcd,sofuture/etcd,hongbinz/etcd,robszumski/etcd,arthurcolle/etcd,bakins/etcd,openedbox/etcd,linuxcer/etcd,yichengq/etcd,junxu/etcd,ravigadde/etcd,spotify/etcd,coreos/etcd,zaphod-concur/etcd,tempbottle/etcd,QuantiumTechnology/etcd,shafreeck/etcd,dterei/etcd,mischief/etcd,wfxiang08/etcd,spacejam/etcd,onlyjob/etcd,mqliang/etcd,rnaveiras/etcd,akauppi/etcd,ylong/etcd,westhood/etcd,rchicoli/etcd,raoofm/etcd,insionng/etcd,dnaeon/etcd,insequent/etcd,oscarrr110/etcd,plasticbox/etcd,jefby/etcd,etcd-io/etcd,ajityagaty/etcd,njucslqq/etcd,ktateish/etcd,polvi/etcd,spotify/etcd,gtank/etcd,cvik/etcd,mitake/etcd,kkaneda/etcd,fanminshi/etcd,steveeJ/etcd,mwitkow-io/etcd,ecnahc515/etcd,honeyqa/etcd,cognusion/etcd,whuwxl/etcd,spotify/etcd,nkhare/etcd,sebschrader/etcd,crandles/etcd,jchauncey/etcd,yyljlyy/etcd,elimisteve/etcd,mike-lerch/etcd,pengzj/etcd,offscale/etcd,insionng/etcd,csuideal/etcd,yudai/etcd,buaazp/etcd,a-robinson/etcd,jefby/etcd,insequent/etcd,asim/etcd,SivagnanamCiena/etcd,cvik/etcd,CrazyJvm/etcd,es-chow/etcd,shakefu/etcd,svdata/etcd,youxidev/etcd,hpcloud/etcd,mischief/etcd,devfreesg/etcd,hongbinz/etcd,polvi/etcd,olark/etcd,kkaneda/etcd,mike-lerch/etcd,Winslett/etcd,TheHippo/etcd,purpleidea/etcd,es-chow/etcd,delkyd/etcd,chai2010-playground/etcd,fasaxc/etcd,linuxcer/etcd,wantonsolutions/dinv-etcd,crandles/etcd,tangkun75/etcd,delkyd/etcd,buaazp/etcd,Eagle-X/etcd,xychu/etcd,Timer/etcd,li-ang/etcd,giantswarm/etcd,sayden/etcd,hpcloud/etcd,shawnps/etcd,mqliang/etcd,ajityagaty/etcd,OyTao/etcd_learning,snailwalker/etcd,visheshnp/etcd,arthurcolle/etcd,achanda/etcd,wantonsolutions/dinv-etcd,Timer/etcd,qqsun8819/etcd,youxidev/etcd,visheshnp/etcd,armstrongli/etcd,mwitkow-io/etcd,wfxiang08/etcd,glensc/etcd,dalanlan/etcd,plasticbox/etcd,devfreesg/etcd,ylong/etcd,nekto0n/etcd,combk8s/etcd,zaphod-concur/etcd,fasaxc/etcd,akauppi/etcd,gtank/etcd,sebrandon1/etcd,openedbox/etcd,xueshanf/etcd,jeremyeder/etcd,iamqizhao/etcd,handsomesun/etcd,dalanlan/etcd,cchamplin/etcd,gouyang/etcd,sofuture/etcd,mkumatag/etcd,dannysauer/etcd,xychu/etcd,yifan-gu/etcd,jlamillan/etcd,Yhgenomics/etcd,lzbgt/etcd,sayden/etcd,jmptrader/etcd,fasaxc/etcd,chai2010-playground/etcd,qiaochao911/etcd,gityf/etcd,gae123/etcd,xiang90/etcd,tangkun75/etcd,hroyrh/etcd,chenbaihu/etcd,giantswarm/etcd,snailwalker/etcd,shakefu/etcd,chai2010/etcd,kingland/etcd,purpleidea/etcd,iamqizhao/etcd,mwitkow/etcd,chai2010/etcd,etcd-io/etcd,spacejam/etcd,lumjjb/etcd,njharman/etcd,swingbach/etcd,lumjjb/etcd,olark/etcd,gae123/etcd,jeremyeder/etcd,chenbaihu/etcd,lzbgt/etcd,rchicoli/etcd,YuleiXiao/etcd,tguangch/etcd,justintung/etcd,axingblog/etcd,imzhulei/etcd,luxas/etcd,luxas/etcd,Yhgenomics/etcd,gyuho/etcd,gouyang/etcd,improbable-io/etcd,Winslett/etcd,westhood/etcd,bspline/etcd,hongchaodeng/etcd,dannysauer/etcd,raoofm/etcd,heyitsanthony/etcd,xiang90/etcd,wowsoso/etcd,ajityagaty/etcd,msanterre/etcd,bspline/etcd,yichengq/etcd,CrazyJvm/etcd,sinsharat/etcd,msanterre/etcd,tempbottle/etcd,jravetch/etcd,joshix/etcd,nekto0n/etcd,pauldallen/etcd,fanminshi/etcd,steveeJ/etcd,yifan-gu/etcd,yudai/etcd,qqsun8819/etcd,sebschrader/etcd,ktateish/etcd,gityf/etcd,njharman/etcd,glycerine/etcd,oscarrr110/etcd,glycerine/etcd,shafreeck/etcd,bluebreezecf/etcd,beni55/etcd,rnaveiras/etcd,cvik/etcd,cognusion/etcd,TheHippo/etcd,nieanan/etcd,kingland/etcd,mwitkow/etcd,rnaveiras/etcd,endocode/etcd,gosharplite/etcd,jlamillan/etcd,tamird/etcd,barakmich/etcd,bakins/etcd,jonboulle/etcd,sebrandon1/etcd,dterei/etcd,YuleiXiao/etcd,mickep76/etcd,etcd-io/etcd,honeyqa/etcd,improbable-io/etcd,mqliang/etcd,robszumski/etcd,asim/etcd,barakmich/etcd,xdlinear/etcd,justintung/etcd,StorReduce/etcd,glevand/coreos--etcd,combk8s/etcd,svdata/etcd,hroyrh/etcd,glensc/etcd,heyitsanthony/etcd,achanda/etcd,chipironcin/etcd,mickep76/etcd,endocode/etcd,yyljlyy/etcd,elimisteve/etcd,HideoYamauchi/etcd,siddontang/etcd,li-ang/etcd,swingbach/etcd,axingblog/etcd,onlyjob/etcd,pengzj/etcd,nieanan/etcd,njucslqq/etcd,bdarnell/etcd,armstrongli/etcd,cockroachdb/etcd,beni55/etcd,pauldallen/etcd,ravigadde/etcd,gyuho/etcd,siddontang/etcd,vimalk78/etcd,tguangch/etcd,wowsoso/etcd,princeqjzh/etcd,glevand/coreos--etcd,shawnps/etcd,joshix/etcd,spotify/etcd,OyTao/etcd_learning,mgoelzer/etcd-fork2,tamird/etcd,mkumatag/etcd,mkumatag/etcd,dnaeon/etcd,mgoelzer/etcd-fork2,SivagnanamCiena/etcd,cchamplin/etcd,wantonsolutions/dinv-etcd,xebitstudios/etcd,coreos/etcd,xueshanf/etcd,ecnahc515/etcd,jonboulle/etcd,cvik/etcd,HideoYamauchi/etcd,fgbreel/etcd,jmptrader/etcd,hzy001/etcd,xebitstudios/etcd,bluebreezecf/etcd,nkhare/etcd