https://git.ruby-lang.org/ruby.git/commit/?id=422e2c7274

From 422e2c7274d9dbf1ff93dccc0c3c388f4775e636 Mon Sep 17 00:00:00 2001
From: Robert Schulze <robert@d...>
Date: Tue, 5 May 2020 09:24:52 +0200
Subject: [ruby/reline] Use plus operator to create unfrozen string

https://github.com/ruby/reline/commit/ca274b0d37

diff --git a/lib/reline/ansi.rb b/lib/reline/ansi.rb
index 0fddbcc..b2d7e7d 100644
--- a/lib/reline/ansi.rb
+++ b/lib/reline/ansi.rb
@@ -172,7 +172,7 @@ class Reline::ANSI https://github.com/ruby/ruby/blob/trunk/lib/reline/ansi.rb#L172
 
   def self.cursor_pos
     begin
-      res = String.new
+      res = +''
       m = nil
       @@input.raw do |stdin|
         @@output << "\e[6n"
-- 
cgit v0.10.2


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