/usr/share/doc/ is in ruby-plasma 4:4.13.0-0ubuntu1.
This file is owned by root:root, with mode 0o755.
..
/usr/share/doc/ruby-plasma/
/usr/share/doc/ruby-plasma/examples/
/usr/share/doc/ruby-plasma/examples/CMakeLists.txt
/usr/share/doc/ruby-plasma/examples/applets/
/usr/share/doc/ruby-plasma/examples/applets/digital-clock/
/usr/share/doc/ruby-plasma/examples/applets/digital-clock/digital_clock_config.ui
/usr/share/doc/ruby-plasma/examples/applets/digital-clock/plasma-ruby-digital-clock-default.desktop
/usr/share/doc/ruby-plasma/examples/applets/digital-clock/clock.rb
/usr/share/doc/ruby-plasma/examples/applets/digital-clock/calendar.ui
/usr/share/doc/ruby-plasma/examples/applets/digital-clock/CMakeLists.txt
/usr/share/doc/ruby-plasma/examples/applets/analog-clock/
/usr/share/doc/ruby-plasma/examples/applets/analog-clock/plasma-applet-ruby-analogclock.desktop
/usr/share/doc/ruby-plasma/examples/applets/analog-clock/timezonesConfig.ui
/usr/share/doc/ruby-plasma/examples/applets/analog-clock/clockapplet.rb
/usr/share/doc/ruby-plasma/examples/applets/analog-clock/analog_clock_config.ui
/usr/share/doc/ruby-plasma/examples/applets/analog-clock/clockConfig.ui
/usr/share/doc/ruby-plasma/examples/applets/analog-clock/clock.rb
/usr/share/doc/ruby-plasma/examples/applets/analog-clock/calendar.ui
/usr/share/doc/ruby-plasma/examples/applets/analog-clock/CMakeLists.txt
/usr/share/doc/ruby-plasma/examples/applets/CMakeLists.txt
/usr/share/doc/ruby-plasma/copyright
/usr/share/doc/ruby-plasma/changelog.Debian.gz