From: Максадбек Ахмедов <a.maksadbek@gmail.com>
Date: Sat, 13 Apr 2019 14:38:36 +0000 (+0300)
Subject: strings: remove "a copy of the string" from ToUpper/ToLower comments
X-Git-Tag: go1.13beta1~707
X-Git-Url: http://www.git.cypherpunks.su/?a=commitdiff_plain;h=a01d108e30a00f9126253e061d679b07d9ff72b7;p=gostls13.git

strings: remove "a copy of the string" from ToUpper/ToLower comments

When string letters are all in lower/upper cases, both functions respectively
return original string.

Fixes #30987

Change-Id: Ie8d664f7af5e087f82c1bc156933e9a995645bf4
Reviewed-on: https://go-review.googlesource.com/c/go/+/171735
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
---

diff --git a/src/strings/strings.go b/src/strings/strings.go
index 1805a14bd2..e3fdd9feaf 100644
--- a/src/strings/strings.go
+++ b/src/strings/strings.go
@@ -550,7 +550,7 @@ func Repeat(s string, count int) string {
 	return b.String()
 }
 
-// ToUpper returns a copy of the string s with all Unicode letters mapped to their upper case.
+// ToUpper returns s with all Unicode letters mapped to their upper case.
 func ToUpper(s string) string {
 	isASCII, hasLower := true, false
 	for i := 0; i < len(s); i++ {
@@ -580,7 +580,7 @@ func ToUpper(s string) string {
 	return Map(unicode.ToUpper, s)
 }
 
-// ToLower returns a copy of the string s with all Unicode letters mapped to their lower case.
+// ToLower returns s with all Unicode letters mapped to their lower case.
 func ToLower(s string) string {
 	isASCII, hasUpper := true, false
 	for i := 0; i < len(s); i++ {