[rubygems/rubygems] Fix installing template files with dots

https://github.com/rubygems/rubygems/commit/a82a77251d

lib/rubygems/commands/setup_command.rb

@@ -547,7 +547,7 @@ By default, this RubyGems will install gem as:
 
   def bundler_template_files
     Dir.chdir "bundler/lib" do
-      Dir[File.join('bundler', 'templates', '**', '{*,.*}')].
+      Dir.glob(File.join('bundler', 'templates', '**', '*'), File::FNM_DOTMATCH).
         select{|f| !File.directory?(f)}
     end
   end

test/rubygems/test_gem_commands_setup_command.rb

@@ -28,6 +28,8 @@ class TestGemCommandsSetupCommand < Gem::TestCase
       bundler/exe/bundle
       bundler/lib/bundler.rb
       bundler/lib/bundler/b.rb
+      bundler/lib/bundler/templates/.circleci/config.yml
+      bundler/lib/bundler/templates/.travis.yml
       bundler/man/bundle-b.1
       bundler/man/bundle-b.1.txt
       bundler/man/gemfile.5
@@ -184,6 +186,9 @@ class TestGemCommandsSetupCommand < Gem::TestCase
 
       assert_path_exists File.join(dir, 'bundler.rb')
       assert_path_exists File.join(dir, 'bundler/b.rb')
+
+      assert_path_exists File.join(dir, 'bundler/templates/.circleci/config.yml')
+      assert_path_exists File.join(dir, 'bundler/templates/.travis.yml')
     end
   end