[tex-live] Security issues for restricted shell escape

[Karl Berry]

    Setting "p" isn't much better than "1". 

It at least eliminates the most obvious issues, ie,
\write18{rm -rf /}

    The security holes are huge. 

I can't disagree, and I knew that (and pointed it out) when I
implemented it.  It is a tradeoff.

    * Version 1.17 closes some security holes in pdfcrop

Thanks for your efforts.