[luatex] luatex \write-1

[Hironobu Yamashita]

When I rebuilt from r5966 (experimental), the behavior of \write-1 is OK.

And...

> Here is what Robert's mwe gives on my system (with the \write-1 line
> commented out)

Thank you Jean-François, now I reproduced it.
The behavior of logging from luaotfload is still unchanged with r5966.

\input luaotfload.sty
\font\x="Vollkorn:script=latn"
\x A B
\bye

error: ...xmf-dist/tex/luatex/luaotfload/fontloader-2016-04-21.lua:13129:
attempt to index upvalue 'parameters' (a nil value)

should appear both in the console and in the log, but currently
it appears only in the console.

Hironobu