Assertion failure if newgrf file could not be found.

[DaleStan]

Mostly to test newrf support, I asked OTTD to load DBSetXL.
I forgot, however, to copy dbsetxl.grf in my data folder.
Understandably, I was informed that OTTD could not find that file.

I was then informed that OTTD had failed an assertion on the expression 0 in line 71 of ttd.c.

EDIT: You don't use the bug reporting template and what happens? You forget something important. Like the version number: Latest nightly, r1404.