Ask the owner to be a bit nicer. You can say something like:
> While we all make snide comments about our own code, it really hurts when it comes from somebody else; this is distracting me from the actual suggestions you're giving. Could you try to be nicer with the comments you leave during code review?
> While we all make snide comments about our own code, it really hurts when it comes from somebody else; this is distracting me from the actual suggestions you're giving. Could you try to be nicer with the comments you leave during code review?
This isn't a problem with you.