tracer.go
func (t *BTTracer) AddFaultedThread(options []string, tid int) []string {
	return t.AddOptions(options, "--fault-thread", strconv.Itoa(tid))
}
func (t *BTTracer) AddFaultedThread(options []string, tid int) []string {
	return t.AddOptions(options, "--fault-thread", strconv.Itoa(tid))
}
// See bcd.Tracer.AddFaultedThread().