[tex-live] new pdftex binary for TeX Live

[Karl Berry]

    taken from expanded texmf.cnf during compile time, a change of texmf.cnf
    in the repository might result in different binaries.

True, and I did change texmf.in in some small way, as I recall.  Not
that it makes any difference in practice.

    So this search path from compile time will go onto the DVDs also
    (for no use, but it doesn't hurt either).

Right.  I discussed this with Reinhard and Norbert.  It's not entirely
clear how to clean it up, because that fallback path is actually
relevant in the Debian (etc.) builds.  We decided it was best to "do
nothing".