Merge commit '28fbd2825d216dafca4d991ad96d05b312f4f9a3'

Merge vendor sendmail 8.17.1 into HEAD

Merge sendmail 8.14.9 to HEAD

MFC after: 3 days

Merge sendmail 8.14.8 to HEAD

MFC after: 5 days

Stage 1 of sendmail dist tree flattening. contrib/sendmail/contrib
prevents doing this in one pass.

Import sendmail 8.12.4

Import of post-8.12.3 bug fixes from vendor repository.

These are being imported for the upcoming FreeBSD 4.6 release.

Import sendmail 8.12.2

A new jail(8) with a configuration file, to replace the work currently done
by /etc/rc.d/jail.

Create the altix project branch. The altix project will add support
for the SGI Altix 350 to FreeBSD/ia64. The hardware used for porting
is a two-module system, consisting of a base compute module and a
CPU expansion module. SGI's NUMAFlex architecture can be an excellent
platform to test CPU affinity and NUMA-aware features in FreeBSD.

- Import the HEAD csup code which is the basis for the cvsmode work.

Import sendmail 8.12.4

Import of post-8.12.3 bug fixes from vendor repository.

These are being imported for the upcoming FreeBSD 4.6 release.

Import sendmail 8.12.2