tcpproxy: don't use range variable in reactivate goroutine
tcpproxy: don't use range variable in reactivate goroutine

Ends up trying to reactivate only the last endpoint.

lorneli/etcd,glevand/coreos--etcd,cockroachdb/etcd,mkumatag/etcd,yudai/etcd,bdarnell/etcd,heyitsanthony/etcd,yudai/etcd,a-robinson/etcd,mqliang/etcd,etcd-io/etcd,YuleiXiao/etcd,visheshnp/etcd,dannysauer/etcd,rnaveiras/etcd,ajityagaty/etcd,sebrandon1/etcd,tguangch/etcd,rnaveiras/etcd,armstrongli/etcd,rnaveiras/etcd,lumjjb/etcd,plasticbox/etcd,CrazyJvm/etcd,tguangch/etcd,CrazyJvm/etcd,bdarnell/etcd,joshix/etcd,gyuho/etcd,fanminshi/etcd,sinsharat/etcd,lorneli/etcd,xiang90/etcd,a-robinson/etcd,mkumatag/etcd,sebrandon1/etcd,ajityagaty/etcd,etcd-io/etcd,akauppi/etcd,insequent/etcd,cockroachdb/etcd,xiang90/etcd,coreos/etcd,etcd-io/etcd,handsomesun/etcd,whuwxl/etcd,mkumatag/etcd,heyitsanthony/etcd,jlamillan/etcd,whuwxl/etcd,joshix/etcd,mickep76/etcd,gyuho/etcd,handsomesun/etcd,lumjjb/etcd,sinsharat/etcd,li-ang/etcd,bluebreezecf/etcd,vimalk78/etcd,coreos/etcd,akauppi/etcd,mqliang/etcd,ajityagaty/etcd,mickep76/etcd,visheshnp/etcd,jlamillan/etcd,mqliang/etcd,plasticbox/etcd,dannysauer/etcd,insequent/etcd,fanminshi/etcd,vimalk78/etcd,armstrongli/etcd,bluebreezecf/etcd,YuleiXiao/etcd,li-ang/etcd,glevand/coreos--etcd