[tlu] TLU critical update still faliing

[Karl Berry]

    There's an issue about the addition of hard links
    https://github.com/megastep/makeself/issues/214

I installed makeself 2.5.0 on tug (/usr/local/share) and committed a
tiny change to our script to use it (r68895). In my test, the resulting
archive doesn't have the hard links any more. We'll see what happens
tonight ... --thanks, karl.