https://git.ruby-lang.org/ruby.git/commit/?id=0dcd25b711

From 0dcd25b711d9b907d3d3085b55790ea6e3a75e0d Mon Sep 17 00:00:00 2001
From: Nobuyoshi Nakada <nobu@r...>
Date: Wed, 22 Jun 2022 09:30:05 +0900
Subject: vcs.rb: show diagnostic/progressing messages when debugging [ci skip]

---
 tool/lib/vcs.rb | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tool/lib/vcs.rb b/tool/lib/vcs.rb
index c41276e3b4..0915fd072e 100644
--- a/tool/lib/vcs.rb
+++ b/tool/lib/vcs.rb
@@ -132,7 +132,7 @@ class VCS https://github.com/ruby/ruby/blob/trunk/tool/lib/vcs.rb#L132
     end
     last, changed, modified, *rest = (
       begin
-        if NullDevice
+        if NullDevice and !debug?
           save_stderr = STDERR.dup
           STDERR.reopen NullDevice, 'w'
         end
-- 
cgit v1.2.1


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