/usr/lib/ is in ruby-http 0.6.1-1.
This file is owned by root:root, with mode 0o755.
..
/usr/lib/ruby/vendor_ruby/
/usr/lib/ruby/
/usr/lib/ruby/vendor_ruby/http/
/usr/lib/ruby/vendor_ruby/http/headers.rb
/usr/lib/ruby/vendor_ruby/http/mime_type/
/usr/lib/ruby/vendor_ruby/http/mime_type/adapter.rb
/usr/lib/ruby/vendor_ruby/http/mime_type/json.rb
/usr/lib/ruby/vendor_ruby/http/redirector.rb
/usr/lib/ruby/vendor_ruby/http/response/
/usr/lib/ruby/vendor_ruby/http/response/parser.rb
/usr/lib/ruby/vendor_ruby/http/response/body.rb
/usr/lib/ruby/vendor_ruby/http/content_type.rb
/usr/lib/ruby/vendor_ruby/http/backports.rb
/usr/lib/ruby/vendor_ruby/http/version.rb
/usr/lib/ruby/vendor_ruby/http/request/
/usr/lib/ruby/vendor_ruby/http/request/writer.rb
/usr/lib/ruby/vendor_ruby/http/headers/
/usr/lib/ruby/vendor_ruby/http/headers/mixin.rb
/usr/lib/ruby/vendor_ruby/http/client.rb
/usr/lib/ruby/vendor_ruby/http/errors.rb
/usr/lib/ruby/vendor_ruby/http/authorization_header.rb
/usr/lib/ruby/vendor_ruby/http/backports/
/usr/lib/ruby/vendor_ruby/http/backports/uri.rb
/usr/lib/ruby/vendor_ruby/http/backports/base64.rb
/usr/lib/ruby/vendor_ruby/http/response.rb
/usr/lib/ruby/vendor_ruby/http/mime_type.rb
/usr/lib/ruby/vendor_ruby/http/authorization_header/
/usr/lib/ruby/vendor_ruby/http/authorization_header/basic_auth.rb
/usr/lib/ruby/vendor_ruby/http/authorization_header/bearer_token.rb
/usr/lib/ruby/vendor_ruby/http/options.rb
/usr/lib/ruby/vendor_ruby/http/chainable.rb
/usr/lib/ruby/vendor_ruby/http/request.rb
/usr/lib/ruby/vendor_ruby/http.rb