/usr/ is in ruby-will-paginate 2.3.15-1build1.
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/will_paginate/
/usr/lib/ruby/vendor_ruby/will_paginate/finder.rb
/usr/lib/ruby/vendor_ruby/will_paginate/view_helpers.rb
/usr/lib/ruby/vendor_ruby/will_paginate/collection.rb
/usr/lib/ruby/vendor_ruby/will_paginate/named_scope_patch.rb
/usr/lib/ruby/vendor_ruby/will_paginate/array.rb
/usr/lib/ruby/vendor_ruby/will_paginate/named_scope.rb
/usr/lib/ruby/vendor_ruby/will_paginate/version.rb
/usr/lib/ruby/vendor_ruby/will_paginate/core_ext.rb
/usr/lib/ruby/vendor_ruby/will_paginate.rb
/usr/share/
/usr/share/doc/
/usr/share/doc/ruby-will-paginate/
/usr/share/doc/ruby-will-paginate/README.rdoc
/usr/share/doc/ruby-will-paginate/copyright
/usr/share/doc/ruby-will-paginate/changelog.Debian.gz