https://git.ruby-lang.org/ruby.git/commit/?id=78ef7eeb36

From 78ef7eeb36f66ef8c47eccd37ca1526ee14a5758 Mon Sep 17 00:00:00 2001
From: Hiroshi SHIBATA <hsbt@r...>
Date: Mon, 14 Sep 2020 14:07:37 +0900
Subject: Manually picked
 https://github.com/ruby/open3/commit/724bdb8e1de939e71a6aa8a65ccf6980f53f4353


diff --git a/lib/open3.gemspec b/lib/open3.gemspec
index 8765920..ad9485a 100644
--- a/lib/open3.gemspec
+++ b/lib/open3.gemspec
@@ -17,6 +17,7 @@ Gem::Specification.new do |spec| https://github.com/ruby/ruby/blob/trunk/lib/open3.gemspec#L17
   spec.description   = spec.summary
   spec.homepage      = "https://github.com/ruby/open3"
   spec.licenses      = ["Ruby", "BSD-2-Clause"]
+  spec.required_ruby_version = ">= 2.6.0"
 
   spec.metadata["homepage_uri"] = spec.homepage
   spec.metadata["source_code_uri"] = spec.homepage
-- 
cgit v0.10.2


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