bug#31104: 26.1; Undo limits

[Eli Zaretskii]

> From: Stefan Kangas <stefan@marxist.se>
> Date: Thu, 8 Aug 2019 14:26:47 +0200
> Cc: 31104@debbugs.gnu.org, Nick Helm <nick@tenpoint.co.nz>
> 
> The last change here was in:
> 
> commit 2159bd065212117a6aff538a69d5ac1864dcd134
> Author: Chong Yidong <cyd@stupidchicken.com>
> Date:   Tue Jan 27 20:57:47 2009 +0000
> 
>     (undo_limit, undo_strong_limit, Vundo_outer_limit): Quadruple undo
>     limits (bug#1501).
> 
> Since then, the current defaults are:
> 
> undo-limit         80000
> undo-strong-limit  120000
> undo-outer-limit   12000000
> 
> Maybe it's time to quadruple (or double) these numbers again?
> Is there any reason not to do that for 27.1?

I'm okay with doubling the limits on the master branch.

Thanks.