Re: 'C-x 4 a' broken in diff buffer

[Stefan Monnier]

>> *************** With arg, use separate IO iff arg is pos
>                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

> which, as we've said before, is not reliable for languages other than C.
> I find that, with the above value of diff-switches, 'C-x 4 a' fails to
> identify a function to put in the ChangeLog, while it found one in Emacs
> 21.1.

Hmm... are you sure it worked in Emacs-21?
There has been changes in this part of the code, but IIRC they're
fairly minor.  And in any case we've never made use of the text added by the
"-p" flag.
If you can find a case that works in Emacs-21 and fails now, it's probably
a bug, but then you'll need to give us a precise recipe.


        Stefan