From: Brad Fitzpatrick <bradfitz@golang.org>
Date: Tue, 20 Nov 2018 18:35:56 +0000 (+0000)
Subject: mime: remove allocation introduced in recent fix
X-Git-Tag: go1.12beta1~299
X-Git-Url: http://www.git.cypherpunks.su/?a=commitdiff_plain;h=aadffd5b675254ce6235b74353ac260d2a5848e1;p=gostls13.git

mime: remove allocation introduced in recent fix

CL 150417 was submitted before I could recommend this change to remove
an unnecessary allocation.

Updates #28849

Change-Id: I4cd655f62bb3d00eda6c997f074785385bceee0c
Reviewed-on: https://go-review.googlesource.com/c/150498
Reviewed-by: Ian Lance Taylor <iant@golang.org>
Run-TryBot: Ian Lance Taylor <iant@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
---

diff --git a/src/mime/mediatype.go b/src/mime/mediatype.go
index fc6e0d0673..05390773a8 100644
--- a/src/mime/mediatype.go
+++ b/src/mime/mediatype.go
@@ -56,7 +56,8 @@ func FormatMediaType(t string, param map[string]string) string {
 
 		b.WriteByte('"')
 		offset := 0
-		for index, character := range []byte(value) {
+		for index := 0; index < len(value); index++ {
+			character := value[index]
 			if character == '"' || character == '\\' {
 				b.WriteString(value[offset:index])
 				offset = index