Remove $FreeBSD$: one-line sh pattern

Remove /^\s*#[#!]?\s*\$FreeBSD\$.*$\n/

Fix build with -DNO_ROOT

The inclusion of 0a0f7486413c broke the build with the -DNO_ROOT option.
Specifically, that commit adds some relative paths (with `..`) to METALOG
that make other tools using that log, fail afterwards (tar, makefs...).

It's been argued[1] if this is really something mtree(8) should handle more
graciously. In the meantime, fix the breakage but changing the order in which
the links are created: first in the parent directory, then in the
architecture-specific one.

We keep the architecture-specific directories an the links to the parent
directories. This is something that we might want to change in the future.

This commit is based on a concept patch by avg@.

[1] https://lists.freebsd.org/archives/dev-commits-src-all/2021-November/index.html

Reported by: bapt@, emaste@
Approved by: avg@
Fixes: 0a0f7486413c
Differential Revision: https://reviews.freebsd.org/D33126

man: Build manpages for all architectures

Building and installing architecture-specific man pages only raises a number of
problems:

* The https://www.freebsd.org/cgi/man.cgi is incomplete. As an
example, it does not show results for pae(4). The reason for this is
that the cgi interface runs on FreeBSD amd64.

* In FreeBSD amd64 some manual pages have broken X-refs. See hptrr(4)
for an example.

* Also, we have broken links in our Release Notes. This is a
consequence of the first point. See
https://www.freebsd.org/releases/13.0R/hardware/#proc-i386.

Make MAN_ARCH default to 'all' so we build all the man pages for all the
architectures. The difference in disk space is negligible. Also link
architecture-specific man pages to their own section while keeping their own
namespace.

PR: 212290
Reported by: mj@bsdops.com
Approved by: ceri@, wosch@
MFC after: 4 weeks

man4: bring back ofw_console.4 and openfirm.4

Back when I wrote openfirm.4, sparc64 was the only architecture to
include the corresponding device. However, nowadays all supported
architectures will provied this Open Firmware interface, even x86
when built with FDT support.
As for ofw_console(4), powerpc actually was the first architecture
to ship it but we'll probably not see another consumer in future.

This partially reverts 702547720ca01437081fb1b6f9eb281c9541021b and
r357794 respectively, adjusting paths and content as appropriate.

pkgbase: move man pages from runtime-manual to runtime

We don't split the other man pages in their own package so do the same for runtime.

Reviewed by: bapt, gjb
Differential Revision: https://reviews.freebsd.org/D20962

FCP-101: Remove bm(4).

Relnotes: yes
FCP: https://github.com/freebsd/fcp/blob/master/fcp-0101.md
Reviewed by: jhb, imp
Differential Revision: https://reviews.freebsd.org/D20230

Actually add the dtsec(4) man page to the build

Include architecture-specific manuals in the runtime-manuals package.

Sponsored by: The FreeBSD Foundation

Add rudimentary man page for llan(4) virtualized ethernet controllers.

MFC after: 1 week

Add support for special keys (volume/brightness/eject) on Apple laptops with
ADB keyboards.

Submitted by: Justin Hibbits <jrh29 at alumni dot cwru dot edu>
MFC after: 9.0-RELEASE

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

MFC r204082,204179,204180,204218,204241,204247,204270,204692:

Provide thermal management and monitoring features in smu(4). This allows
fan control and thermal monitoring on SMU-based Apple G5 machines, as well
as an led(4) interface to control the sleep LED.

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.

Add a manpage for smu(4) now that it does something useful.

MFC r200070:

Add manpages for ams(4), akbd(4), adb(4), and cuda(4), which describe
various drivers for Apple Desktop Bus controllers and peripherals.

Add manpages for ams(4), akbd(4), adb(4), and cuda(4), which describe
various drivers for Apple Desktop Bus controllers and peripherals.

MFC after: 3 days

Provide manual page for the tsec(4) device driver.

Obtained from: Semihalf

Somehow deleted the .4 at the end of the snd_davbus man page right before
commit. Add it back.

Pointy hat to: me

Add support for the I2S and davbus audio controllers found in Apple PowerPC
hardware.

Submitted by: Marco Trillo

Now that pmu(4) has features, it should also have a man page.

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

Add manpage for Apple BMAC ethernet driver.

Approved by: marcel (mentor)

Add device to access and modify Open Firmware NVRAM settings in
PowerPC-based Apple's machines and small utility to do it from
userland modelled after the similar utility in Darwin/OSX.

Only tested on 1.25GHz G4 Mac Mini.

MFC after: 1 month