[ruby/rdoc] Add a dependency on psych gem 4.0.0 or newer

https://github.com/ruby/rdoc/commit/ebe185c877
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aycabta 2021-05-24 00:06:46 +09:00
parent 77e1b47729
commit 9137caaf45
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@ -245,5 +245,6 @@ RDoc includes the +rdoc+ and +ri+ tools for generating and displaying documentat
s.required_ruby_version = Gem::Requirement.new(">= 2.5.0")
s.required_rubygems_version = Gem::Requirement.new(">= 2.2")
s.add_dependency 'psych', '>= 4.0.0'
s.add_development_dependency("gettext")
end