From adce0ea944a9876107808fea5a5972089ae6d18b Mon Sep 17 00:00:00 2001
From: normal <normal@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>
Date: Thu, 16 Mar 2017 23:17:14 +0000
Subject: [PATCH] NEWS: document shorter opt_str_freeze usage

Users do not read commit messages, but maybe they read NEWS.

r57828 ("compile.c: apply opt_str_freeze to String#-@ (uminus)")

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@57994 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
---
 NEWS | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/NEWS b/NEWS
index 576071c18f..4adff4d68f 100644
--- a/NEWS
+++ b/NEWS
@@ -36,6 +36,8 @@ with all sufficient information, see the ChangeLog file or Redmine
 
   * String#-@ deduplicates unfrozen strings.  Already-frozen
     strings remain unchanged for compatibility.  [Feature #13077]
+  * -"literal" (String#-@) optimized to return the same object
+    (same as "literal".freeze in Ruby 2.1+)
 
 === Stdlib updates (outstanding ones only)