Jeff King [off-list ref] writes:

On Mon, May 04, 2020 at 09:28:44AM -0700, Carlo Marcelo Arenas Belón wrote:

quoted

On Mon, May 04, 2020 at 12:07:09PM -0400, Jeff King wrote:

quoted

-- >8 --
Subject: CodingGuidelines: drop arithmetic expansion advice to use "$x"

The advice to use "$x" rather than "x" in arithmetric expansion was
working around a dash bug fixed in 0.5.4. Even Debian oldstable has
0.5.7 these days.

that would be oldoldstable, oldstable is actually in 0.5.8 ;)

Oh, you're right. I forgot they're doing an extra layer these days. It
will officially become obsolete in less than 2 months. :)

Thanks, both.  I'll just do s/0.5.7/0.5.8/ when I add Carlo's
reviewed-by to queue the patch.