On 12 Jul 2014, at 00:41, Hans Hagen <pragma@wxs.nl> wrote:

> […]
> basic-plaintex or test-plaintex?

Sorry for the mismatch in the names: the file I tested is named basic-plaintex.tex, that’s why the message from Plain LuaTeX refers to that name.
While putting that minimal example in my message, I surrounded it with

	%%% begin test-plaintex.tex

	%%% end test-plaintex.tex

I should have said
	%%% begin basic-plaintex.tex

indeed…

Best regards: OK