From 2806a312e1902ed68de890c04a138a0ed038a765 Mon Sep 17 00:00:00 2001
From: 6543 <6543@obermui.de>
Date: Fri, 4 Sep 2020 07:28:08 +0200
Subject: [PATCH] [Backport] Fix go1.15 lint error in modules/public/public.go
 (#12707) (#12708)

* fix go1.15 lint error in modules/public/public.go

* CI.restart()
---
 modules/public/public.go | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/modules/public/public.go b/modules/public/public.go
index 8d027855c..790f418a2 100644
--- a/modules/public/public.go
+++ b/modules/public/public.go
@@ -6,6 +6,7 @@ package public
 
 import (
 	"encoding/base64"
+	"fmt"
 	"log"
 	"net/http"
 	"path"
@@ -159,7 +160,7 @@ func (opts *Options) handle(ctx *macaron.Context, log *log.Logger, opt *Options)
 	// Add an Expires header to the static content
 	if opt.ExpiresAfter > 0 {
 		ctx.Resp.Header().Set("Expires", time.Now().Add(opt.ExpiresAfter).UTC().Format(http.TimeFormat))
-		tag := GenerateETag(string(fi.Size()), fi.Name(), fi.ModTime().UTC().Format(http.TimeFormat))
+		tag := GenerateETag(fmt.Sprint(fi.Size()), fi.Name(), fi.ModTime().UTC().Format(http.TimeFormat))
 		ctx.Resp.Header().Set("ETag", tag)
 		if ctx.Req.Header.Get("If-None-Match") == tag {
 			ctx.Resp.WriteHeader(304)