bug#39980: [PATCH] gnus-shorten-url: Improve and avoid args-out-of-range error

[Lars Ingebrigtsen]

Štěpán Němec <stepnem@gmail.com> writes:

> Considering the opinions expressed here and in
> https://lists.gnu.org/archive/html/emacs-devel/2020-03/msg00541.html I
> have reverted to defun and autoload the function instead to prevent
> having to load subr-x at runtime whenever gnus-sum is loaded, as it is
> currently only used there by `gnus-summary-browse-url'.
>
> Revised patch attached.

Looks good to me.

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