windres: -fo docu fix

[Nick Clifton]

Hi Dimitrie,

> Nick, -fo is a synonym for -o, not for -i :)

Doh!

> 2003-04-23  Dimitrie O. Paun <dpaun@rogers.com>
> 
>         * doc/binutils.texi: Fix the documentation for
> 	  the -fo option.

Approved and applied.

Cheers
        Nick