Re: fix for bug#29935 copyright-update inserts year at random places

[Stefan Monnier <monnier@iro.umontreal.ca>]

>> This said, I actually do like that the buffer is shown in its
>> own frame.  
> So using pop-to-buffer-same-window, rather than pop-to-buffer, is ok for you.

Yes.

>> It would be nice to re-iconify the frame afterwards, tho.
> Apparently completion (or maybe read-from-minibuffer) does re-iconify a
> popped up frame (that happened once in my experiments). I looked thru
> the C code for read-from-minibuffer, and it has comments that talk about
> preserving the frame state, but I did not see where it minimizes the
> frame on return. So I don't know how to do that from elisp in
> copyright-update-year.

I think rather than save-window-excursion, it uses a kind of
"un-pop-to-buffer".  Can't remember if it's bury-buffer or what, tho.


        Stefan