Merge pull request #1856 from ruby/revise-gemspec

Revise .gemspec to remove `Gemfile` and `Gemfile.lock`

Author: soutaro

rbs.gemspec

@@ -29,7 +29,10 @@ Gem::Specification.new do |spec|
   # The `git ls-files -z` loads the files in the RubyGem that have been added into git.
   spec.files         = Dir.chdir(File.expand_path('..', __FILE__)) do
     `git ls-files -z`.split("\x0").reject do |f|
-      f.match(%r{^(test|spec|features|bin|steep|benchmark)/}) || f.match(/Gemfile\.lock/)
+      [
+        %r{^(test|spec|features|bin|steep|benchmark)/},
+        /Gemfile/
+      ].any? {|r| f.match(r) }
     end
   end
   spec.extensions = %w{ext/rbs_extension/extconf.rb}