bug#23098: 25.0.92; (recenter -1) can leave point in the middle of the window

[Eli Zaretskii]

> From: Jorgen Schäfer <jorgen.schaefer@gmail.com>
> Date: Wed, 23 Mar 2016 19:40:50 +0000
> Cc: 23098@debbugs.gnu.org
> 
> The use case here are buffers like comint or IRC chat buffers. It's nice to 
> keep the last line of the buffer flush
> with the last line of the window, to show the maximum amount of data. 
> (recenter -1) at the end of a buffer is
> supposed to do just that. In this case, it does not, but instead leaves point 
> in the *middle* of the window.

Yes, because the scrolling fails, and Emacs falls back on recentering.

> If it is not possible to display that line halfway (which sounds like a 
> missing feature to begin with), I would
> expect Emacs to least try to leave point as low in the window as possible, 
> instead of in the middle of the
> window. C-l likewise won't move point any further down, for example.

If you set scroll-conservatively to a value larger than 100, don't you
get point as low as possible?