Re: new modules vdprintf, vdprintf-posix

[Bruno Haible]

Eric Blake wrote:
> > +This function is missing on some platforms:
> > +..., Cygwin, mingw, Interix 3.5.
> 
> Cygwin 1.5.x lacks [v]dprintf, but cygwin 1.7.0 provides them.

So, feel free to update the documentation files.

Bruno