bug#64392: cksum: escaping issues of --check output

[Christoph Anton Mitterer]

On Tue, 2023-07-11 at 12:27 +0100, Pádraig Brady wrote:
> Full escaping and doc adjustments pushed at:
> https://git.sv.gnu.org/cgit/coreutils.git/commit/?id=86614ba1c

Thanks :-)

Cheers,
Chris.