Michael Stapelberg 64ab0ddff1 cmd/tailscale/cli: only exit silently if len(args) == 0 ...

This amends commit b7e48058c8.

That commit broke all documented ways of starting Tailscale on gokrazy:
https://gokrazy.org/packages/tailscale/ — both Option A (tailscale up)
and Option B (tailscale up --auth-key) rely on the tailscale CLI working.

I verified that the tailscale CLI just prints it help when started
without arguments, i.e. it does not stay running and is not restarted.

I verified that the tailscale CLI successfully exits when started with
tailscale up --auth-key, regardless of whether the node has joined
the tailnet yet or not.

I verified that the tailscale CLI successfully waits and exits when
started with tailscale up, as expected.

fixes https://github.com/gokrazy/gokrazy/issues/286

Signed-off-by: Michael Stapelberg <michael@stapelberg.de>

2025-01-13 11:27:35 -08:00

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