hack/scripts-dev: fail tests with "(--- FAIL:|leak)" in Makefile
hack/scripts-dev: fail tests with "(--- FAIL:|leak)" in Makefile

Signed-off-by: Gyu-Ho Lee <3454051ee3341eb69bdf6fca40899cdad4d86496@gmail.com>

lorneli/etcd,joshix/etcd,fanminshi/etcd,whuwxl/etcd,cockroachdb/etcd,etcd-io/etcd,akauppi/etcd,vimalk78/etcd,mqliang/etcd,dannysauer/etcd,mqliang/etcd,ajityagaty/etcd,rnaveiras/etcd,bluebreezecf/etcd,sebrandon1/etcd,xiang90/etcd,sebrandon1/etcd,heyitsanthony/etcd,mkumatag/etcd,cockroachdb/etcd,gyuho/etcd,ajityagaty/etcd,glevand/coreos--etcd,mkumatag/etcd,rnaveiras/etcd,dannysauer/etcd,lorneli/etcd,heyitsanthony/etcd,gyuho/etcd,rnaveiras/etcd,ajityagaty/etcd,etcd-io/etcd,xiang90/etcd,sinsharat/etcd,etcd-io/etcd,bdarnell/etcd,whuwxl/etcd,mkumatag/etcd,glevand/coreos--etcd,li-ang/etcd,vimalk78/etcd,akauppi/etcd,coreos/etcd,bdarnell/etcd,mqliang/etcd,sinsharat/etcd,bluebreezecf/etcd,li-ang/etcd,joshix/etcd,coreos/etcd,fanminshi/etcd