goodhosts.go
func (h Hosts) Has(ip string, host string) bool {
	pos := h.getHostPosition(ip, host)

	return pos != -1
}
func (h Hosts) Has(ip string, host string) bool {
	pos := h.getHostPosition(ip, host)

	return pos != -1
}
// Return a bool if ip/host combo in hosts file.