/usr/ is in ruby-net-ssh-krb 0.4.0-1.
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/net/
/usr/lib/ruby/vendor_ruby/net/ssh/
/usr/lib/ruby/vendor_ruby/net/ssh/authentication/
/usr/lib/ruby/vendor_ruby/net/ssh/authentication/methods/
/usr/lib/ruby/vendor_ruby/net/ssh/authentication/methods/gssapi_with_mic.rb
/usr/lib/ruby/vendor_ruby/net/ssh/kerberos/
/usr/lib/ruby/vendor_ruby/net/ssh/kerberos/constants.rb
/usr/lib/ruby/vendor_ruby/net/ssh/kerberos.rb
/usr/lib/ruby/vendor_ruby/net/ssh/krb.rb
/usr/share/
/usr/share/doc/
/usr/share/doc/ruby-net-ssh-krb/
/usr/share/doc/ruby-net-ssh-krb/README.md
/usr/share/doc/ruby-net-ssh-krb/changelog.Debian.gz
/usr/share/doc/ruby-net-ssh-krb/copyright
/usr/share/doc/ruby-net-ssh-krb/examples/
/usr/share/doc/ruby-net-ssh-krb/examples/Capfile
/usr/share/doc/ruby-net-ssh-krb/examples/gss.rb
/usr/share/doc/ruby-net-ssh-krb/examples/sspi.rb
/usr/share/rubygems-integration/
/usr/share/rubygems-integration/all/
/usr/share/rubygems-integration/all/specifications/
/usr/share/rubygems-integration/all/specifications/net-ssh-krb-0.4.0.gemspec