A journal which accepted a paper of mine has made some alterations to the text of the paper as part of their editing process. They sent me the edited version for approval, and I discovered that at least some of these changes are erroneous (for instance, one of the changes included a typo, and another was changing the spelling of a technical term incorrectly). I asked for a list of all the changes made, and was told that this was "too messy" (I assume because the alterations to the text are mixed in with the changes to the formatting of the paper, which is a more standard part of the editing process).
At this time the journal is waiting for me to approve/make changes to the final proof before publication.
My question is how I should deal with this situation. I feel like I have an obligation to be responsible for the contents of a paper published in my name. (Though, if I'm mistaken about this, that would be a helpful answer.)
I can think of a few solutions, ranging from the tedious (compare the PDF files line by line to identify the changes myself), to the demanding (insist on a list of changes anyway), to the passive-aggressive (either withdraw the paper or add a sulky footnote disavowing responsibility for the unknown changes to the paper). These all have problems, so I'd appreciate more constructive ways to approach the situation.