From cd65e4adcab7d04b84a8cc296bca41e3a15a0a91 Mon Sep 17 00:00:00 2001
From: Nobuyoshi Nakada <nobu@ruby-lang.org>
Date: Tue, 29 Mar 2022 00:52:10 +0900
Subject: [PATCH] [ruby/rdoc] Use `File.binread`

https://github.com/ruby/rdoc/commit/987c609df9
---
 lib/rdoc/rdoc.rb | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/lib/rdoc/rdoc.rb b/lib/rdoc/rdoc.rb
index 2d8a9dea8c..7e17b71d6b 100644
--- a/lib/rdoc/rdoc.rb
+++ b/lib/rdoc/rdoc.rb
@@ -429,9 +429,7 @@ The internal error was:
     files.reject do |file, *|
       file =~ /\.(?:class|eps|erb|scpt\.txt|svg|ttf|yml)$/i or
         (file =~ /tags$/i and
-         File.open(file, 'rb') { |io|
-           io.read(100) =~ /\A(\f\n[^,]+,\d+$|!_TAG_)/
-         })
+         /\A(\f\n[^,]+,\d+$|!_TAG_)/.match?(File.binread(file, 100)))
     end
   end