DTLS rehandshake broken

[Sean Buckheister]

>> autogen serv-args.def
>> fserr 2: cannot map data file options:  No such file or directory
> 
> This smells a little bit of srcdir != builddir and you're in the
> build directory looking for source.  Could that be?

I built from the gnutls srcdir, with PATH set as reported, and which
reporting autogen to lie where i built the snapshot. Earlier revisions
of gnutls build fine in that mode.