Re: [groff] anyone seen ".ny0" ?

[Tadziu Hoffmann]

> I was surprised
> 
>     $ groff -Ww <<<.ny0
>     $ groff -Ww <<<.foo
> 
> didn't complain about those unknown things as they could be
> typos that it should help catch.

There's a typo in the command line: -ww enables warnings, -Ww
disables them.