bug#65049: Minor update to the repro steps

[Dmitry Gutov]

On 28/08/2023 19:57, Eli Zaretskii wrote:
> Remove that?  What will happen to non-vc-root-diff clients of that?

It is my understanding that all (or almost all?) users of vc-diff and 
other callers of vc-diff-internal use vc-root-diff just as often (and 
don't complain about it).

There could be some exceptions, of course. Like people who use CVS 
exclusively.

> Or do you mean remove the vc-coding-system-for-diff call, and use
> undecided-unix instead?

That's also an option, but I'd have to see a scenario where this binding 
changes the observed behavior.

> If the latter, then it is sub-optimal when vc-coding-system-for-diff
does produce non-undecided value for some reason.

The question is how often that actually happens, and how useful the 
result is compared to the default behavior.