bug#38384: (next|previous)-buffer silent about not switching

[Eli Zaretskii]

> From: Juanma Barranquero <lekktu@gmail.com>
> Date: Tue, 26 Nov 2019 20:56:42 +0100
> Cc: 38384@debbugs.gnu.org
> 
> > We previously signaled user-error in situations where we couldn't
> > continue at all.  Your addition is in a situation where nothing
> > particularly bad happened, so from the POV of a caller, we are now
> > signaling a user-error gratuitously.  I'm bothered only by the change
> > whereby we signal a user-error with the purpose of attracting the
> > user's attention, not because we cannot continue.
> 
> I don't really see much difference.

Well, I do.

> Anyway, there's no point in arguing this; if you feel strongly that the last 
> case should depend on
> called-interactively-p, I'll change it.

Please do, and thanks.