[PATCH v7] gdb: set filename-display shortpath support

[Eli Zaretskii]

> From: Azat Khuzhin <a3at.mail@gmail.com>
> Cc: tromey@redhat.com,
> 	eliz@gnu.org,
> 	brobecker@adacore.com,
> 	palves@redhat.com,
> 	Azat Khuzhin <a3at.mail@gmail.com>
> Date: Wed, 11 Dec 2013 02:06:54 +0400
> 
> V7: add NEWS and doc.

Thanks.

> +@item set filename-display shortpath
> +Display only non-common part of filenames and compilation directory.

I suggest an example here, because the description is somewhat
cryptic.

OK with that change.