/usr/ is in ruby-simple-oauth 0.2.0-2.
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/simple_oauth.rb
/usr/lib/ruby/vendor_ruby/simple_oauth/
/usr/lib/ruby/vendor_ruby/simple_oauth/header.rb
/usr/share/
/usr/share/doc/
/usr/share/doc/ruby-simple-oauth/
/usr/share/doc/ruby-simple-oauth/copyright
/usr/share/doc/ruby-simple-oauth/README.md
/usr/share/doc/ruby-simple-oauth/changelog.Debian.gz
/usr/share/rubygems-integration/
/usr/share/rubygems-integration/all/
/usr/share/rubygems-integration/all/specifications/
/usr/share/rubygems-integration/all/specifications/simple_oauth-0.2.0.gemspec
/usr/share/lintian/
/usr/share/lintian/overrides/
/usr/share/lintian/overrides/ruby-simple-oauth