Maisem Ali d24a8f7b5a wgengine/router{windows}: return the output from the firewallTweaker
on error.

While debugging a customer issue where the firewallTweaker was failing
the only message we have is `router: firewall: error adding
Tailscale-Process rule: exit status 1` which is not really helpful.
This will help diagnose firewall tweaking failures.

Signed-off-by: Maisem Ali <maisem@tailscale.com>
2021-12-13 10:07:32 -08:00
..
2021-12-05 21:42:52 -08:00