/usr/lib/ruby/vendor_ruby/bundler/vendor/ is in ruby-bundler 1.13.6-2.
This file is owned by root:root, with mode 0o755.
..
/usr/lib/ruby/vendor_ruby/bundler/vendor/compact_index_client/
/usr/lib/ruby/vendor_ruby/bundler/vendor/compact_index_client/lib/
/usr/lib/ruby/vendor_ruby/bundler/vendor/compact_index_client/lib/compact_index_client/
/usr/lib/ruby/vendor_ruby/bundler/vendor/compact_index_client/lib/compact_index_client.rb
/usr/lib/ruby/vendor_ruby/bundler/vendor/compact_index_client/lib/compact_index_client/cache.rb
/usr/lib/ruby/vendor_ruby/bundler/vendor/compact_index_client/lib/compact_index_client/updater.rb
/usr/lib/ruby/vendor_ruby/bundler/vendor/compact_index_client/lib/compact_index_client/version.rb
/usr/lib/ruby/vendor_ruby/bundler/vendor/postit/
/usr/lib/ruby/vendor_ruby/bundler/vendor/postit/lib/
/usr/lib/ruby/vendor_ruby/bundler/vendor/postit/lib/postit/
/usr/lib/ruby/vendor_ruby/bundler/vendor/postit/lib/postit.rb
/usr/lib/ruby/vendor_ruby/bundler/vendor/postit/lib/postit/environment.rb
/usr/lib/ruby/vendor_ruby/bundler/vendor/postit/lib/postit/installer.rb
/usr/lib/ruby/vendor_ruby/bundler/vendor/postit/lib/postit/parser.rb
/usr/lib/ruby/vendor_ruby/bundler/vendor/postit/lib/postit/setup.rb
/usr/lib/ruby/vendor_ruby/bundler/vendor/postit/lib/postit/version.rb