For Exim, this includes an enormous number of fixes. Most of these are
for esoteric configurations, although if you're bitten by them, you're
bitten hard.
The fixes also include closing up a buffer overflow that is not believed
to be exploitable, and a format string vulnerability that was only
exploitable by an Exim admin user, but then provided root access.
For Eximon, this just rationalizes a patch we carried locally for ages.
The Makefile was changed to track exim-4.xx before the ports freeze,
but this patch was not updated. Fix it now to unbreak the build.
Reported by: kris
