[tex-live] Having a .fmt for different engines

[Akira Kakuto]

Hi Gerben,

> It looks as if this is based on an older fmtutil (no enable etc) and 
> for me it will be impossible to incorporate because my package scripts 
> rely on the newer options. As I understand the situation now, 
> unix-fmtutil will have subdir support as well.

Of course you must use the new script.
I hope, if you change fmtutil, please rewrite it by perl,
because it is difficult for me and Staszek to translate
sh script in order to use on Windows.

Thanks,
Akira