From: Naoki Kanatani <k12naoki@gmail.com>
Date: Thu, 20 Jul 2017 15:35:31 +0000 (+0900)
Subject: net/http: delete unnecessary string concatenation
X-Git-Tag: go1.10beta1~1532
X-Git-Url: http://www.git.cypherpunks.su/?a=commitdiff_plain;h=d6cada7fa4ef92190c2b59c9048413f9280e4a74;p=gostls13.git

net/http: delete unnecessary string concatenation

In the existing implementation, if pattern is an empty string,
program calls a panic with the message which is a concatenation of
"http: invalid pattern " and pattern.
In this case, pattern is an empty, so the commit removes
this concatenation and the trailing space.

Fixes: #21102

Change-Id: I49f58b52d835311a6ac642de871eb15646e48a54
Reviewed-on: https://go-review.googlesource.com/50350
Reviewed-by: Dmitri Shuralyov <shurcool@gmail.com>
Reviewed-by: Tom Bergan <tombergan@google.com>
Run-TryBot: Tom Bergan <tombergan@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
---

diff --git a/src/net/http/server.go b/src/net/http/server.go
index e5ac252a68..8af4438262 100644
--- a/src/net/http/server.go
+++ b/src/net/http/server.go
@@ -2265,7 +2265,7 @@ func (mux *ServeMux) Handle(pattern string, handler Handler) {
 	defer mux.mu.Unlock()
 
 	if pattern == "" {
-		panic("http: invalid pattern " + pattern)
+		panic("http: invalid pattern")
 	}
 	if handler == nil {
 		panic("http: nil handler")