https://git.ruby-lang.org/ruby.git/commit/?id=07dca5c02c

From 07dca5c02c95322a39833705d3acd87b3adb00ac Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?David=20Rodr=C3=ADguez?= <deivid.rodriguez@r...>
Date: Tue, 19 May 2020 14:32:12 +0200
Subject: [rubygems/rubygems] Extract a local outside the loop

https://github.com/rubygems/rubygems/commit/da1492e9d7

diff --git a/lib/rubygems/core_ext/kernel_require.rb b/lib/rubygems/core_ext/kernel_require.rb
index decf482..6a7faaf 100644
--- a/lib/rubygems/core_ext/kernel_require.rb
+++ b/lib/rubygems/core_ext/kernel_require.rb
@@ -43,8 +43,9 @@ module Kernel https://github.com/ruby/ruby/blob/trunk/lib/rubygems/core_ext/kernel_require.rb#L43
     # https://github.com/rubygems/rubygems/pull/1868
     resolved_path = begin
       rp = nil
+      load_path_check_index = Gem.load_path_insert_index - Gem.activated_gem_paths
       Gem.suffixes.each do |s|
-        $LOAD_PATH[0...Gem.load_path_insert_index - Gem.activated_gem_paths].each do |lp|
+        $LOAD_PATH[0...load_path_check_index].each do |lp|
           safe_lp = lp.dup.tap(&Gem::UNTAINT)
           begin
             if File.symlink? safe_lp # for backward compatibility
-- 
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