/usr/share/doc/ is in ruby-httpclient 2.3.3-3.1.
This file is owned by root:root, with mode 0o755.
..
/usr/share/doc/ruby-httpclient/
/usr/share/doc/ruby-httpclient/copyright
/usr/share/doc/ruby-httpclient/changelog.Debian.gz
/usr/share/doc/ruby-httpclient/examples/
/usr/share/doc/ruby-httpclient/examples/cookie.rb
/usr/share/doc/ruby-httpclient/examples/oauth_salesforce_10.rb
/usr/share/doc/ruby-httpclient/examples/stream.rb
/usr/share/doc/ruby-httpclient/examples/dav.rb
/usr/share/doc/ruby-httpclient/examples/howto.rb
/usr/share/doc/ruby-httpclient/examples/thread.rb
/usr/share/doc/ruby-httpclient/examples/async.rb
/usr/share/doc/ruby-httpclient/examples/oauth_buzz.rb
/usr/share/doc/ruby-httpclient/examples/ssl/
/usr/share/doc/ruby-httpclient/examples/ssl/0key.pem
/usr/share/doc/ruby-httpclient/examples/ssl/0cert.pem
/usr/share/doc/ruby-httpclient/examples/ssl/webrick_httpsd.rb
/usr/share/doc/ruby-httpclient/examples/ssl/1000cert.pem
/usr/share/doc/ruby-httpclient/examples/ssl/ssl_client.rb
/usr/share/doc/ruby-httpclient/examples/ssl/1000key.pem
/usr/share/doc/ruby-httpclient/examples/ssl/htdocs/
/usr/share/doc/ruby-httpclient/examples/ssl/htdocs/index.html
/usr/share/doc/ruby-httpclient/examples/oauth_twitter.rb
/usr/share/doc/ruby-httpclient/examples/auth.rb
/usr/share/doc/ruby-httpclient/examples/oauth_friendfeed.rb
/usr/share/doc/ruby-httpclient/examples/wcat.rb