[luatex] Can't open pipe in .tex doc

[Michael Talbot-Wilson]

On Mon, 13 Aug 2012, Arthur Reutenauer wrote:

> On Tue, Aug 14, 2012 at 12:33:04AM +0200, Reinhard Kotucha wrote:
>> I assume that you are wondering about
>>
>> > No pages of output.
>
>  No, he's wondering why io.popen returns nil, of course.  There is an
> option to disable it, and I guess it's on by default in TeX Live.
> Michael, just run LuaTeX with --shell-escape (see the man page).

Arthur, thanks a lot.  (Didn't think of looking at the man page.)