runtime: execute next term in the chain

[gyuho]

Reproduce

FAILPOINTS=1 ./build
GOFAIL_HTTP=:2381 ./bin/etcd

curl http://localhost:2381/github.com/coreos/etcd/etcdserver/raftBeforeSave -XPUT -d'sleep(1000)->panic("etcd-tester")'
ETCDCTL_API=3 ./bin/etcdctl get foo

Current code does not execute panic("etcd-tester").

[heyitsanthony]

Already covered by https://github.com/coreos/gofail/blob/master/runtime/terms_test.go#L32?

The failpoint won't execute all the terms in the cascade. See the examples in the failpoint manpage (e.g., "5*return(5)->0.1%return(22)")

sleep(1000)->panic("etcd-tester") should probably be 1*sleep(1000)->panic("etcd-tester")

[gyuho]

Yeah 1*sleep(1000)->panic("etcd-tester") works. Thanks!