bug#70949: display-buffer-choose-some-window

[martin rudalics via "Bug reports for GNU Emacs, the Swiss army knife of text editors" <bug-gnu-emacs@gnu.org>]

 > +(defcustom display-buffer-choose-some-window 'lru
 > +  "How to choose an existing window.
 > +This defines a strategy of choosing some window
 > +by `display-buffer-use-some-window'.
 > +
 > +The possible choices are `lru' (the default) to select the least recently
 > +used window on that frame, and `mru' to select the most recently used
 > +window on that frame.  When a function, it takes two arguments: a buffer
 > +and an alist, and should return the window where to display the buffer."

I'd call the option 'display-buffer-use-some-window-method' so it's more
clear that it pertains to 'display-buffer-use-some-window'.  As for the
first line of the doc-string I'd write

"Which window `display-buffer-use-some-window' should choose."

Also, we should mention the constraints used for 'lru' and that 'mru'
avoids the selected window here.

martin