https://git.ruby-lang.org/ruby.git/commit/?id=de4889ce5c

From de4889ce5c5177ed276dfc840a5c07f69317096c Mon Sep 17 00:00:00 2001
From: Nobuyoshi Nakada <nobu@r...>
Date: Wed, 10 Jul 2019 02:07:13 +0900
Subject: Use the found version number


diff --git a/ext/stringio/stringio.gemspec b/ext/stringio/stringio.gemspec
index 83654d5..77c9e79 100644
--- a/ext/stringio/stringio.gemspec
+++ b/ext/stringio/stringio.gemspec
@@ -5,7 +5,7 @@ https://github.com/ruby/ruby/blob/trunk/ext/stringio/stringio.gemspec#L5
 
 source_version = ["", "ext/stringio/"].find do |dir|
   begin
-    File.open(File.join(__dir__, "#{dir}stringio.c")) {|f|
+    break File.open(File.join(__dir__, "#{dir}stringio.c")) {|f|
       f.gets("\n#define STRINGIO_VERSION ")
       f.gets[/\s*(".+")/, 1].undump
     }
-- 
cgit v0.10.2


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