https://git.ruby-lang.org/ruby.git/commit/?id=06ab2791c3

From 06ab2791c38c431e08bc8d9381c9a1ca727297c4 Mon Sep 17 00:00:00 2001
From: Nobuyoshi Nakada <nobu@r...>
Date: Wed, 20 May 2020 10:52:32 +0900
Subject: pure_parser.rb: get rid of an error at localed messages


diff --git a/tool/pure_parser.rb b/tool/pure_parser.rb
index 59e8fb7..dfd66ff 100755
--- a/tool/pure_parser.rb
+++ b/tool/pure_parser.rb
@@ -1,11 +1,14 @@ https://github.com/ruby/ruby/blob/trunk/tool/pure_parser.rb#L1
 #!/usr/bin/ruby -pi
 BEGIN {
+  # pathological setting
+  ENV['LANG'] = ENV['LC_MESSAGES'] = ENV['LC_ALL'] = 'C'
+
   require_relative 'lib/colorize'
 
   colorize = Colorize.new
   file = ARGV.shift
   begin
-    version = IO.popen(ARGV+%w[--version], &:read)
+    version = IO.popen(ARGV+%w[--version], "rb", &:read)
   rescue Errno::ENOENT
     abort "Failed to run `#{colorize.fail ARGV.join(' ')}'; You may have to install it."
   end
-- 
cgit v0.10.2


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