bug#29007: 25.3; [PATCH] Make filecache use extended completion

[Eli Zaretskii]

> From: Andreas Politz <politza@hochschule-trier.de>
> Date: Thu, 26 Oct 2017 08:56:16 +0200
> 
> As it is, file-cache-minibuffer-complete uses prefix completion via
> {try,all}-completion only, which makes it less convenient.  The patch
> below adds calls to completion-{try,all}-completion.

Can you please elaborate how this change makes the feature more
convenient?

Thanks.