[Trisquel-users] What is the default owner of the /var/cache subdirectories?

[189 . rytege]

Good afternoon, I have executed the following command by mistake:
sudo chown -R www-data:www-data /var/cache

I want to undo this, so I am asking if anyone may know what is the default  
owner of /var/cache subdirectories?

Is it root? Should I execute: sudo chown -R root:root /var/cache

Thank you in advance for your sharings.