etcd-tester: match ErrTimeoutDueToLeaderFail
etcd-tester: match ErrTimeoutDueToLeaderFail

stresser in followers should retry when failure is injected to
their leader.

a-robinson/etcd,zaphod-concur/etcd,insequent/etcd,jonboulle/etcd,qqsun8819/etcd,mkumatag/etcd,akauppi/etcd,plasticbox/etcd,whuwxl/etcd,westhood/etcd,rchicoli/etcd,ajityagaty/etcd,tguangch/etcd,sofuture/etcd,jlamillan/etcd,wantonsolutions/dinv-etcd,yudai/etcd,StorReduce/etcd,lumjjb/etcd,luxas/etcd,OyTao/etcd_learning,sinsharat/etcd,wantonsolutions/dinv-etcd,dannysauer/etcd,coreos/etcd,westhood/etcd,lorneli/etcd,linuxcer/etcd,sebrandon1/etcd,purpleidea/etcd,bluebreezecf/etcd,purpleidea/etcd,glevand/coreos--etcd,joshix/etcd,mickep76/etcd,armstrongli/etcd,jlamillan/etcd,endocode/etcd,glycerine/etcd,tguangch/etcd,xiang90/etcd,heyitsanthony/etcd,fanminshi/etcd,bdarnell/etcd,handsomesun/etcd,chipironcin/etcd,vimalk78/etcd,cockroachdb/etcd,ravigadde/etcd,lumjjb/etcd,hongchaodeng/etcd,glycerine/etcd,gyuho/etcd,ktateish/etcd,handsomesun/etcd,mkumatag/etcd,luxas/etcd,linuxcer/etcd,nekto0n/etcd,glevand/coreos--etcd,ravigadde/etcd,li-ang/etcd,sofuture/etcd,ajityagaty/etcd,CrazyJvm/etcd,CrazyJvm/etcd,vimalk78/etcd,etcd-io/etcd,cockroachdb/etcd,nekto0n/etcd,visheshnp/etcd,ktateish/etcd,mqliang/etcd,visheshnp/etcd,etcd-io/etcd,zaphod-concur/etcd,OyTao/etcd_learning,mickep76/etcd,sebrandon1/etcd,akauppi/etcd,yudai/etcd,mkumatag/etcd,bluebreezecf/etcd,coreos/etcd,ajityagaty/etcd,mqliang/etcd,armstrongli/etcd,sinsharat/etcd,bdarnell/etcd,endocode/etcd,wantonsolutions/dinv-etcd,jonboulle/etcd,rnaveiras/etcd,YuleiXiao/etcd,hongchaodeng/etcd,rnaveiras/etcd,etcd-io/etcd,StorReduce/etcd,rchicoli/etcd,gyuho/etcd,lorneli/etcd,YuleiXiao/etcd,dannysauer/etcd,joshix/etcd,fanminshi/etcd,plasticbox/etcd,whuwxl/etcd,chipironcin/etcd,a-robinson/etcd,mqliang/etcd,rnaveiras/etcd,li-ang/etcd,heyitsanthony/etcd,insequent/etcd,swingbach/etcd,swingbach/etcd,qqsun8819/etcd,xiang90/etcd