https://git.ruby-lang.org/ruby.git/commit/?id=9b2afb2eed

From 9b2afb2eed894aa45f7bf2a1ef7793290fe95e9e Mon Sep 17 00:00:00 2001
From: aycabta <aycabta@g...>
Date: Mon, 23 Aug 2021 22:02:25 +0900
Subject: [ruby/reline] Scroll properly to create margin

https://github.com/ruby/reline/commit/064d54f8f1
---
 lib/reline/line_editor.rb | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/lib/reline/line_editor.rb b/lib/reline/line_editor.rb
index 0f27237..4dd4e6d 100644
--- a/lib/reline/line_editor.rb
+++ b/lib/reline/line_editor.rb
@@ -559,9 +559,8 @@ class Reline::LineEditor https://github.com/ruby/ruby/blob/trunk/lib/reline/line_editor.rb#L559
       @dialog_vertical_offset = -(DIALOG_HEIGHT + 1)
     else
       if (lower_space + @rest_height) < DIALOG_HEIGHT
-        down = DIALOG_HEIGHT - (lower_space + @rest_height)
-        scroll_down(down)
-        move_cursor_up(DIALOG_HEIGHT - 1)
+        scroll_down(DIALOG_HEIGHT)
+        move_cursor_up(DIALOG_HEIGHT)
       end
       @dialog_updown = :down
       @dialog_vertical_offset = 1
-- 
cgit v1.1


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