bug#45154: 28.0.50; (gnus-configure-windows 'pipe) fail

[Eric Abrahamsen]

OGAWA Hirofumi <hirofumi@mail.parknet.co.jp> writes:

> This code outputs the following error.
>
> (require 'gnus-win)
> (gnus-configure-windows 'pipe)
>
> Debugger entered--Lisp error: (error "Invalid buffer type: 
> shell-command-buffer-name")
>   signal(error ("Invalid buffer type: shell-command-buffer-name"))
>   error("Invalid buffer type: %s" shell-command-buffer-name)
>   gnus-configure-frame((shell-command-buffer-name 27) #<window 13 on re>)
>   gnus-configure-frame((vertical 1.0 (summary 0.25 point) 
> (shell-command-buffer-name 1.0)))
>
> maybe, gnus-buffer-configuration change in
>
>       2ed502d2a7 Add constants for shell command output buffer names
>
> is including mistake.

Looks like it. Either that should use a back-tick-plus-comma to eval the
variable name, or I suppose we could add an entry to
`gnus-window-to-buffer' that looks like '(shell-buffer .
shell-command-buffer-name).