From 26cb69f7d173fe5c9c5e6e4dddfd135212987701 Mon Sep 17 00:00:00 2001
From: Kazuki Yamaguchi <k@rhe.jp>
Date: Fri, 31 Oct 2025 00:02:21 +0900
Subject: sync_default_gems.rb: fix release check on case-sensitive filesystems

This fixes it for the English gem.
---
 tool/sync_default_gems.rb | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/tool/sync_default_gems.rb b/tool/sync_default_gems.rb
index f1a28f402a..d927086d32 100755
--- a/tool/sync_default_gems.rb
+++ b/tool/sync_default_gems.rb
@@ -370,13 +370,11 @@ module SyncDefaultGems
   def check_prerelease_version(gem)
     return if ["rubygems", "mmtk", "cgi"].include?(gem)
 
-    gem = gem.downcase
-
     require "net/https"
     require "json"
     require "uri"
 
-    uri = URI("https://rubygems.org/api/v1/versions/#{gem}/latest.json")
+    uri = URI("https://rubygems.org/api/v1/versions/#{gem.downcase}/latest.json")
     response = Net::HTTP.get(uri)
     latest_version = JSON.parse(response)["version"]
 
-- 
cgit v1.2.3