bug#62435: [PATCH] 29.0 Fix eww--download-directory on MS-Windows

[Eli Zaretskii <eliz@gnu.org>]

> From: lux <lx@shellcodes.org>
> Cc: 62435@debbugs.gnu.org
> Date: Sat, 25 Mar 2023 21:42:44 +0800
> 
> 
> +(defcustom eww-default-download-directory "~/Downloads/"
> +  "The default directory where downloaded files will be saved."
> +  :version "29.0"
              ^^^^^^
This should be "30.1".

>  (defun eww--download-directory ()
>    "Return the name of the download directory.
>  If ~/Downloads/ exists, that will be used, and if not, the
>  DOWNLOAD XDG user directory will be returned.  If that's
>  undefined, ~/Downloads/ is returned anyway."
> -  (or (and (file-exists-p "~/Downloads/")
> -           "~/Downloads/")
> +  (or (and (file-exists-p eww-default-download-directory)
> +           eww-default-download-directory)
>        (when-let ((dir (xdg-user-dir "DOWNLOAD")))
>          (file-name-as-directory dir))
> -      "~/Downloads/"))
> +      eww-default-download-directory))

Please update the doc string as well.