From: Ian Lance Taylor <iant@golang.org>
Date: Thu, 27 Feb 2020 02:34:25 +0000 (-0800)
Subject: net/textproto: pass missing argument to fmt.Sprintf
X-Git-Tag: go1.15beta1~989
X-Git-Url: http://www.git.cypherpunks.su/?a=commitdiff_plain;h=33e98326a25d54cef19e94ca73c45eaed8847f56;p=gostls13.git

net/textproto: pass missing argument to fmt.Sprintf

The vet tool didn't catch this because the fmt.Sprintf format argument
was written as an expression.

Fixes #37467

Change-Id: I72c20ba45e3f42c195fa5e68adcdb9837c7d7ad5
Reviewed-on: https://go-review.googlesource.com/c/go/+/221297
Run-TryBot: Ian Lance Taylor <iant@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Emmanuel Odeke <emm.odeke@gmail.com>
---

diff --git a/src/net/textproto/reader.go b/src/net/textproto/reader.go
index a505da985c..d26e981ae4 100644
--- a/src/net/textproto/reader.go
+++ b/src/net/textproto/reader.go
@@ -557,7 +557,7 @@ func noValidation(_ []byte) error { return nil }
 // contain a colon.
 func mustHaveFieldNameColon(line []byte) error {
 	if bytes.IndexByte(line, ':') < 0 {
-		return ProtocolError(fmt.Sprintf("malformed MIME header: missing colon: %q" + string(line)))
+		return ProtocolError(fmt.Sprintf("malformed MIME header: missing colon: %q", line))
 	}
 	return nil
 }