factory_linux.go
func InitPath(path string, args ...string) func(*LinuxFactory) error {
	return func(l *LinuxFactory) error {
		l.InitPath = path
		l.InitArgs = args
		return nil
	}
}
func InitPath(path string, args ...string) func(*LinuxFactory) error {
	return func(l *LinuxFactory) error {
		l.InitPath = path
		l.InitArgs = args
		return nil
	}
}
// InitPath returns an options func to configure a LinuxFactory with the
// provided absolute path to the init binary and arguements.