It turns out that mktemp's "-t" option, while useful, isn't
available on many systems (Mandrake & Red Hat Linux 9 at least,
and probably piles of others).  So, here's a portability
patch that removes all use of mktemp's "-t" option.
Unlike the quick hack I posted earlier, this should be
"clean everywhere" (assuming you have mktemp).

This is a patch against git-pasky 0.6.3.

This is my first attempt to _post_ a patch using git itself,
and I'm not entirely sure how you want it.   Let me know
if you have a problem with it!

--- David A. Wheeler