contrib: Remove various $FreeBSD$ tags not upstream

Sponsored by: Netflix

Belatedly update version and date for sendmail 8.18.1 upgrade

Note upgrade to sendmail 8.17.1

rc.sendmail: remove unused script

20 years ago the use of rc.sendmail script was dropped in favor
of /etc/rc.d/sendmail, it is time to retire the script entirely
now.

MFC after: 1 week

Update commit instructions. Still more TBD as I plan out the first
git-based vendor import.

Reminder to check tools/build/mk/OptionalObsoleteFiles.inc on new
version imports.

Obtained from: garga@

Update for sendmail 8.15.2 import

MFC after: 3 days

Update for sendmail 8.14.9 import

MFC after: 3 days

Update for sendmail 8.14.8 import

MFC after: 5 days

Update link to vendor import instructions

Update for sendmail 8.14.7

MFC after: 4 days

Update import info based on recent experiences and sendmail 8.14.6 import.

MFC after: 4 days

Update notes regarding FreeBSD import

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.

MFC: Update FreeBSD information

Update FreeBSD information

MFC after: 4 days

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

Update import/merge instructions for the svn repo

Update for sendmail 8.14.2

MFC after: 1 week

Update for sendmail 8.14.1

Update to sendmail 8.13.8

Update FreeBSD info regarding sendmail 8.13.7 import

Add a note regarding bumping the freebsd*mc files for mergemaster's sake.

Record sendmail 8.13.6 upgrade

Note the sendmail 8.13.4 upgrade

MFC after: 4 days

Update for sendmail 8.13.3 import

Update notes after sendmail 8.13.1 import

Fix path to rc.sendmail

Update for 8.12.11 import

MFC after: 7 days

Adding WorkAroundBrokenAAAA seems a necessity even in the submit.mc given
the number of broken DNS servers out there in the world. Since we are
diverging from the sendmail.org submit.mc, it's time to make our own
freebsd.submit.mc.

PR: conf/57733
Reviewed by: nork
MFC after: 2 weeks

Update for 8.12.10 import

sendmail 8.12.9 has been imported

sendmail 8.12.8 has been imported

Update for sendmail 8.12.7 import

Changes for the import of sendmail 8.12.6

Update for the sendmail 8.12.5 import

sendmail 8.12.4 has been imported

Two more files to keep track of.

A couple more sendmail-related files

Record sendmail 8.12.3 import

Found two more files that use the sendmail infrastructure.

Another man page that can change as sendmail requirements change.

Add usr.sbin/mailwrapper/Makefile to the list of changed files as
it contains a list of symlinks to make which are normally symlinks
to the sendmail binary.

Add a list of files sendmail importants may affect. This is mostly
for my own reference so I don't miss things on future imports.

Update import instructions for sendmail 8.12.2

Update import information

Update FreeBSD import information

sendmail 8.11.4 has been imported

Forgot to update this README when I imported 8.11.3

Update FreeBSD import README

Update FreeBSD import information after sendmail 8.11.1 import

Add a FREEBSD-upgrade file describing what was done for the import
Remove obsolete files after the 8.11.0 import