pkg/transport: fix minor typo
pkg/transport: fix minor typo

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