https://git.ruby-lang.org/ruby.git/commit/?id=298d65b1e4

From 298d65b1e4f3019af7fc9b905390b56736f5fd0e Mon Sep 17 00:00:00 2001
From: Nobuyoshi Nakada <nobu@r...>
Date: Wed, 23 Jun 2021 18:57:39 +0900
Subject: Discard RDOCOPT environment variable to make tests stable

---
 test/rdoc/test_rdoc_rubygems_hook.rb | 1 +
 1 file changed, 1 insertion(+)

diff --git a/test/rdoc/test_rdoc_rubygems_hook.rb b/test/rdoc/test_rdoc_rubygems_hook.rb
index f5177e4..fb8dbd1 100644
--- a/test/rdoc/test_rdoc_rubygems_hook.rb
+++ b/test/rdoc/test_rdoc_rubygems_hook.rb
@@ -25,6 +25,7 @@ class TestRDocRubygemsHook < Test::Unit::TestCase https://github.com/ruby/ruby/blob/trunk/test/rdoc/test_rdoc_rubygems_hook.rb#L25
       SOURCE_DATE_EPOCH
       BUNDLER_VERSION
       HOME
+      RDOCOPT
     ].map {|e| [e, ENV.delete(e)]}.to_h
     ENV["HOME"] = @tempdir
 
-- 
cgit v1.1


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