3f686688a6 regressed the Windows beFirewallKillswitch code, preventing the /firewall subprocess from running. Fixes tailscale/corp#6063 Change-Id: Ibd105759e5fecfeffc54f587f8ddcd0f1cbc4dca Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
3f686688a6