/usr/ is in ruby-nenv 0.3.0-2.
This file is owned by root:root, with mode 0o755.
..
/usr/lib/ruby/vendor_ruby/
/usr/lib/
/usr/lib/ruby/
/usr/lib/ruby/vendor_ruby/nenv/
/usr/lib/ruby/vendor_ruby/nenv/autoenvironment.rb
/usr/lib/ruby/vendor_ruby/nenv/builder.rb
/usr/lib/ruby/vendor_ruby/nenv/environment/
/usr/lib/ruby/vendor_ruby/nenv/environment/dumper/
/usr/lib/ruby/vendor_ruby/nenv/environment/dumper/default.rb
/usr/lib/ruby/vendor_ruby/nenv/environment/dumper.rb
/usr/lib/ruby/vendor_ruby/nenv/environment/loader/
/usr/lib/ruby/vendor_ruby/nenv/environment/loader/default.rb
/usr/lib/ruby/vendor_ruby/nenv/environment/loader/predicate.rb
/usr/lib/ruby/vendor_ruby/nenv/environment/loader.rb
/usr/lib/ruby/vendor_ruby/nenv/environment.rb
/usr/lib/ruby/vendor_ruby/nenv/version.rb
/usr/lib/ruby/vendor_ruby/nenv.rb
/usr/share/
/usr/share/doc/
/usr/share/doc/ruby-nenv/
/usr/share/doc/ruby-nenv/README.md.gz
/usr/share/doc/ruby-nenv/changelog.Debian.gz
/usr/share/doc/ruby-nenv/copyright
/usr/share/rubygems-integration/
/usr/share/rubygems-integration/all/
/usr/share/rubygems-integration/all/specifications/
/usr/share/rubygems-integration/all/specifications/nenv-0.3.0.gemspec