[luatex] recent tunenc.def fails with lualatex

[Frank Mittelbach]

Am 05.03.2017 um 06:03 schrieb Norbert Preining:
> This does not seem to be correct. The updated formats would be in
> 	/usr/local/texlive/2016/texmf-var/web2c/...
> You have a personal copy of lualatex.fmt, I guess you have called
> 	fmtutil
> (without the -sys) at some point.

that seems to happen quite often these days (perhaps because in the past 
people made their private formats for luatex when it wasn't set up?)

I wonder if the fmtutil-sys could at least detect and warn if there are 
private formats for the user running it as part of an update?

frank