bug#38282: 26.3; goto-line should not share input history with other commands

[Eli Zaretskii]

> From: Federico Tedin <federicotedin@gmail.com>
> Date: Thu, 21 Nov 2019 23:06:14 +0100
> Cc: 38282@debbugs.gnu.org, Robert Pluim <rpluim@gmail.com>,
>  Michael Albinus <michael.albinus@gmx.de>
> 
> Here's my first attempt at implementing this - I managed to get around
> the `read-from-minibuffer' problem with some help from the Emacs
> StackOverflow (but created a separate bug report for it:
> https://debbugs.gnu.org/cgi/bugreport.cgi?bug=38317). I'm attaching a
> small patch.

Thanks, but please also update the ELisp manual, where the history
variables are documented in "Minibuffer History".