From d13e907952ae818bc1c3abe1c011ae5f38f8fd18 Mon Sep 17 00:00:00 2001
From: Federico Bond <federicobond@gmail.com>
Date: Thu, 27 Aug 2020 16:11:21 -0300
Subject: [PATCH] btcd: fix conversion of int to string failing in Go 1.15

---
 upnp.go | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/upnp.go b/upnp.go
index feb256d0..c74e4ed7 100644
--- a/upnp.go
+++ b/upnp.go
@@ -36,6 +36,7 @@ import (
 	"bytes"
 	"encoding/xml"
 	"errors"
+	"fmt"
 	"net"
 	"net/http"
 	"os"
@@ -229,7 +230,7 @@ func getServiceURL(rootURL string) (url string, err error) {
 	}
 	defer r.Body.Close()
 	if r.StatusCode >= 400 {
-		err = errors.New(string(r.StatusCode))
+		err = errors.New(fmt.Sprint(r.StatusCode))
 		return
 	}
 	var root root