/usr/ is in ruby-securecompare 1.0.0-1.
This file is owned by root:root, with mode 0o755.
..
/usr/lib/
/usr/lib/ruby/
/usr/lib/ruby/vendor_ruby/
/usr/lib/ruby/vendor_ruby/securecompare/
/usr/lib/ruby/vendor_ruby/securecompare/version.rb
/usr/lib/ruby/vendor_ruby/securecompare.rb
/usr/share/
/usr/share/doc/
/usr/share/doc/ruby-securecompare/
/usr/share/doc/ruby-securecompare/README.md
/usr/share/doc/ruby-securecompare/changelog.Debian.gz
/usr/share/doc/ruby-securecompare/copyright
/usr/share/rubygems-integration/
/usr/share/rubygems-integration/all/
/usr/share/rubygems-integration/all/specifications/
/usr/share/rubygems-integration/all/specifications/securecompare-1.0.0.gemspec