tailscale ssh is not working when built with ts_include_cli

[SuperSandro2000]

What is the issue?

When tailscale is built with the ts_include_cli tag and the tailscaled binary is symlinked to tailscale (https://tailscale.com/kb/1207/small-tailscale), tailscale ssh fails like:

$ tailscale ssh host -v
...
debug1: Local version string SSH-2.0-OpenSSH_9.7
2024/05/12 22:57:44 tailscaled does not take non-flag arguments: ["nc" "host" "22"]
kex_exchange_identification: Connection closed by remote host
Connection closed by UNKNOWN port 65535

Steps to reproduce

• build tailscaled with ts_include_cli tag
• symlink tailscale to tailscaled
• run tailscale ssh
• see that it tries to execute tailscaled nc which doesn't exist

Are there any recent changes that introduced the issue?

I think that never worked

OS

Linux

OS version

NixOS unstable

Tailscale version

1.66.1

Other software

No response

Bug report

No response

[thenbe]

I can reproduce this issue on nixos.

$ tailscale ssh user@host
2024/05/15 16:08:39 tailscaled does not take non-flag arguments: ["nc" "host.tail123ab.ts.net." "22"]

[cjshearer]

Another repro on NixOS, for what it's worth

$ tailscale ssh user@host
2024/06/29 10:43:56 tailscaled does not take non-flag arguments: ["nc" "my.tailscale.ts.net." "22"]
Connection closed by UNKNOWN port 65535

[shaver]

this also affects the openwrt package, fwiw