From 7d204d89c2138b476cb1babf85f6f6e1cce9b268 Mon Sep 17 00:00:00 2001
From: Mihai Parparita <mihai@tailscale.com>
Date: Fri, 10 Feb 2023 15:40:28 -0800
Subject: [PATCH] ipn/ipnlocal: fix passthrough of formatting arguments in
 PeerAPI doctor output

Followup to #7235, we were not treating the formatting arguments as
variadic. This worked OK for single values, but stopped working when
we started passing multiple values (noticed while trying out #7244).

Signed-off-by: Mihai Parparita <mihai@tailscale.com>
---
 ipn/ipnlocal/peerapi.go | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/ipn/ipnlocal/peerapi.go b/ipn/ipnlocal/peerapi.go
index e3e7401e7..e0f78ec85 100644
--- a/ipn/ipnlocal/peerapi.go
+++ b/ipn/ipnlocal/peerapi.go
@@ -832,7 +832,7 @@ func (h *peerAPIHandler) handleServeDoctor(w http.ResponseWriter, r *http.Reques
 	fmt.Fprintln(w, "<pre>")
 
 	h.ps.b.Doctor(r.Context(), func(format string, args ...any) {
-		line := fmt.Sprintf(format, args)
+		line := fmt.Sprintf(format, args...)
 		fmt.Fprintln(w, html.EscapeString(line))
 	})