/usr/ is in ruby-omniauth-oauth2-generic 0.2.2-1.
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/omniauth/
/usr/lib/ruby/vendor_ruby/omniauth/strategies/
/usr/lib/ruby/vendor_ruby/omniauth/strategies/oauth2_generic.rb
/usr/lib/ruby/vendor_ruby/omniauth-oauth2-generic/
/usr/lib/ruby/vendor_ruby/omniauth-oauth2-generic/version.rb
/usr/lib/ruby/vendor_ruby/omniauth-oauth2-generic.rb
/usr/share/
/usr/share/doc/
/usr/share/doc/ruby-omniauth-oauth2-generic/
/usr/share/doc/ruby-omniauth-oauth2-generic/README.md.gz
/usr/share/doc/ruby-omniauth-oauth2-generic/changelog.Debian.gz
/usr/share/doc/ruby-omniauth-oauth2-generic/copyright
/usr/share/rubygems-integration/
/usr/share/rubygems-integration/all/
/usr/share/rubygems-integration/all/specifications/
/usr/share/rubygems-integration/all/specifications/omniauth-oauth2-generic-0.2.2.gemspec