goodhosts.go
func (h *Hosts) IsWritable() bool {
	_, err := os.OpenFile(h.Path, os.O_WRONLY, 0660)
	if err != nil {
		return false
	}

	return true
}
func (h *Hosts) IsWritable() bool {
	_, err := os.OpenFile(h.Path, os.O_WRONLY, 0660)
	if err != nil {
		return false
	}

	return true
}
// Return ```true``` if hosts file is writable.