Subject: bug#10458: 24.0.92; ! in dired on a file starting with a hyphen

From: Stefan Monnier <[email-masked]>
Date: Tue, 10 Jan 2012 15:03:49 -0500

>>> How 'bout "! diff -u oldfoo RET"?
> Actually, GNU diff accepts this just fine:
>   diff -u oldfoo -- -newfoo

Interesting.  So we need yet another hack in case the file is named
"--".

        Stefan