[En-Nut-Discussion] Fixes to nut/crt/getf.c

[Pete Allinson]

Hi Harald,

>Anyway, because of the number of changes I'd prefer to
>add it _after_ the next official release.

Fine.  I ought to do more testing, and I'm sure I can reduce the size of 
the additional code, but I'd like to do a few other things first.

>Are you using AVRGCC or ICCAVR, btw?

AVRGCC

Cheers,
Pete A