Remove $FreeBSD$: two-line .h pattern

Remove /^\s*\*\n \*\s+\$FreeBSD\$$\n/

Fix compilation on head and while here:
- remove unwanted whitespaces
- remove useless function ifphys()
- fix the Makefile to install it into /usr/bin

PR: 250133
Reviewed by: glebius, maxim
Approved by: glebius
Differential Revision: https://reviews.freebsd.org/D27155

Since 32-bit if_baudrate isn't enough to describe a baud rate of a 10 Gbit
interface, in the r241616 a crutch was provided. It didn't work well, and
finally we decided that it is time to break ABI and simply make if_baudrate
a 64-bit value. Meanwhile, the entire struct if_data was reviewed.

o Remove the if_baudrate_pf crutch.

o Make all fields of struct if_data fixed machine independent size. The
notion of data (packet counters, etc) are by no means MD. And it is a
bug that on amd64 we've got a 64-bit counters, while on i386 32-bit,
which at modern speeds overflow within a second.

This also removes quite a lot of COMPAT_FREEBSD32 code.

o Give 16 bit for the ifi_datalen field. This field was provided to
make future changes to if_data less ABI breaking. Unfortunately the
8 bit size of it had effectively limited sizeof if_data to 256 bytes.

o Give 32 bits to ifi_mtu and ifi_metric.
o Give 64 bits to the rest of fields, since they are counters.

__FreeBSD_version bumped.

Discussed with: emax
Sponsored by: Netflix
Sponsored by: Nginx, Inc.

Catch up with various changes to if_data and make this compile again
on HEAD. Seems to be one of the the only tools giving us access to
ifi_baudrate and ifi_baudrate_pf values.

MFC after: 3 days

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.

Make ifinfo build. The struct if_data members ifi_recvquota and
ifi_xmitquota were renamed to ifi_spare_char1 and ifi_spare_char2
respectively.

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

Add a new leaf to the net.link.generic.ifdata.%d sysctl to retrieve
the name and unit number assigned by the driver. This is needed by
SNMP to find interfaces after they have been renamed.

MFC after: 4 weeks

The interface index space may be sparsely populated (e.g. when an
interface in the middle is if_detach()'d). Return (and handle)
ENOENT when the ifmib(4) is accessed for a nonexistent interface.

MFC after: 14 days

Fix compilation problems and bounds-checking bug in `ifinfo'.

PR: 21177
Submitted by: Craig Leres <leres@ee.lbl.gov>

$Id$ -> $FreeBSD$

Made this compile again (getopt moved to <unistd.h>).

Fixed usage message.

Revert $FreeBSD$ to $Id$

Make the long-awaited change from $Id$ to $FreeBSD$

This will make a number of things easier in the future, as well as (finally!)
avoiding the Id-smashing problem which has plagued developers for so long.

Boy, I'm glad we're not using sup anymore. This update would have been
insane otherwise.

Add my little `ifinfo' program. This is sort of a cross between a
diagnostic program for debugging the interface MIB and an example of
how to use same. Someday, netstat should be updated to print this
information in a prettier form.