[luatex] quote around filename leads to error

[Ulrike Fischer]

Am Thu, 31 Mar 2016 10:05:50 +0200 schrieb Hans Hagen:

>> Is this a bug or aren't quotes allowed around file names? Are the
>> quotes actually needed here or are spaces in file names protected by
>> the braces?
 
> indeed spaces are protected by the { } so no quotes here

But why does luatex gives an error while pdflatex simply ignores
them? 

-- 
Ulrike Fischer 
http://www.troubleshooting-tex.de/