https://git.ruby-lang.org/ruby.git/commit/?id=00b027a69b

From 00b027a69ba4f6b0df8d10cb84ef0547d592dc91 Mon Sep 17 00:00:00 2001
From: aycabta <aycabta@g...>
Date: Wed, 9 Jun 2021 20:37:10 +0900
Subject: [ruby/reline] Fix explamation of #read_io

https://github.com/ruby/reline/commit/301ed11bec
---
 lib/reline.rb | 11 ++++++-----
 1 file changed, 6 insertions(+), 5 deletions(-)

diff --git a/lib/reline.rb b/lib/reline.rb
index 26cf911..649eec5 100644
--- a/lib/reline.rb
+++ b/lib/reline.rb
@@ -271,11 +271,12 @@ module Reline https://github.com/ruby/ruby/blob/trunk/lib/reline.rb#L271
       Reline::IOGate.deprep(otio)
     end
 
-    # Keystrokes of GNU Readline will timeout it with the specification of
-    # "keyseq-timeout" when waiting for the 2nd character after the 1st one.
-    # If the 2nd character comes after 1st ESC without timeout it has a
-    # meta-property of meta-key to discriminate modified key with meta-key
-    # from multibyte characters that come with 8th bit on.
+    # GNU Readline waits for "keyseq-timeout" milliseconds to see if the ESC
+    # is followed by a character, and times out and treats it as a standalone
+    # ESC if the second character does not arrive. If the second character
+    # comes before timed out, it is treated as a modifier key with the
+    # meta-property of meta-key, so that it can be distinguished from
+    # multibyte characters with the 8th bit turned on.
     #
     # GNU Readline will wait for the 2nd character with "keyseq-timeout"
     # milli-seconds but wait forever after 3rd characters.
-- 
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