https://git.ruby-lang.org/ruby.git/commit/?id=706c816ad2

From 706c816ad270d981c37894b78ac49cdf1d7cf350 Mon Sep 17 00:00:00 2001
From: Kazuhiro NISHIYAMA <zn@m...>
Date: Fri, 24 May 2019 19:01:39 +0900
Subject: Escape dots in regexp


diff --git a/tool/downloader.rb b/tool/downloader.rb
index cb36150..f42f9a0 100644
--- a/tool/downloader.rb
+++ b/tool/downloader.rb
@@ -94,7 +94,7 @@ class Downloader https://github.com/ruby/ruby/blob/trunk/tool/downloader.rb#L94
         super(UNICODE_PUBLIC+name_dir_part+beta_name, name, dir, since, options)
       else
         index_file = Pathname.new(under(dir, name_dir_part+'index.html'))
-        if index_file.exist? and name_dir_part !~ /^(12.1.0|emoji\/12.0)/
+        if index_file.exist? and name_dir_part !~ /^(12\.1\.0|emoji\/12\.0)/
           raise "Although Unicode is not in beta, file #{index_file} exists. " +
                 "Remove all files in this directory and in .downloaded-cache/ " +
                 "because they may be leftovers from the beta period."
-- 
cgit v0.10.2


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