https://git.ruby-lang.org/ruby.git/commit/?id=b3ce6fa099

From b3ce6fa099b2fdb330d19372ab1a51fd7c97fc51 Mon Sep 17 00:00:00 2001
From: Nobuyoshi Nakada <nobu@r...>
Date: Thu, 30 Apr 2020 11:44:09 +0900
Subject: [ruby/irb] Relaxed regexp for readline

Readline::VERSION may not be a single word, e.g EditLine wrapper
when linked with editline.

diff --git a/test/irb/test_cmd.rb b/test/irb/test_cmd.rb
index 7a9e7d7..92b65dd 100644
--- a/test/irb/test_cmd.rb
+++ b/test/irb/test_cmd.rb
@@ -101,7 +101,7 @@ module TestIRB https://github.com/ruby/ruby/blob/trunk/test/irb/test_cmd.rb#L101
       expected = %r{
         Ruby\sversion: .+\n
         IRB\sversion:\sirb .+\n
-        InputMethod:\sReadlineInputMethod\swith\s[^ ]+\s[^ ]+(?!\sand\s.+)\n
+        InputMethod:\sReadlineInputMethod\swith\s(?~.*\sand\s.+)\n
         \z
       }x
       assert_match expected, irb.context.main.irb_info.to_s
-- 
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