[XeTeX] How to manually create the xelatex.fmt?

[Arthur Reutenauer]

> I do not think, it makes any difference.
> 
> -jobname=STRING         set the job name to STRING
> 
> -progname=STRING        set program (and fmt) name to STRING

  -jobname doesn't make any difference because it's set from the base
name of the first input (in that case, xelatex.ini), but -progname may
make a difference to kpathsea (although it would really be far-fetched
if it caused XeTeX to load a different latex.ltx -- but you never
know...)

	Arthur