etcdmain: test wrong heartbeat-interval, election-timeout in TestConfigFileElectionTimeout
etcdmain: test wrong heartbeat-interval, election-timeout in TestConfigFileElectionTimeout

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

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