const char *helptext[] = {
	"  -d delay-ms: delay time for Enter key relase (default 30).",
	"  -f: run in foreground, not as a daemon.",
	"  -k keyboard-device: keyboard device (usually under /dev/input/by-id/).",
	"  -p pause-ms: pause before opening keyboard/uinput devs (default 0).",
	"  -v: verbose debugging.",
	"  -h, --help: this help text.",
	"  -V, --version: show version number.",
	(const char*)0
};