Remove $FreeBSD$: one-line sh pattern

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

Use humanize_number to format available and bad space sizes.

Reviewed by: mckusick (earlier version)
MFC after: 2 weeks
Differential Revision: https://reviews.freebsd.org/D23050

Revert Makefile@335696 that sneaked into the commit.

X-MFC with: 335696
MFC after: 2 weeks

Detect exFAT filesystems and abort if found and tighten BPB sanity
check.

Obtained from: Android https://android-review.googlesource.com/61827
MFC after: 2 weeks

sbin: normalize paths using SRCTOP-relative paths or :H when possible

This simplifies make logic/output

MFC after: 1 month
Sponsored by: Dell EMC Isilon

Explicitly add more files to the 'runtime' package.

Sponsored by: The FreeBSD Foundation

Make fsck and fsck_msdosfs WARNS=6 clean

- sprinkle const
- add volatile qualifier to avoid vfork clobbering

Inspired by: NetBSD
PR: bin/139802
Reviewed by: ed

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

Fix some style(9), although there's a lot more issues here.
Fix some casting errors.

PR: 142384
Submitted by: giffunip at tutopia dot com
Obtained from: NetBSD
MFC after: 3 weeks

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.

style.Makefile(5):
Use WARNS?= instead of WARNS=.

Default to WARNS=2.
Binary builds that cannot handle this must explicitly set WARNS=0.

Reviewed by: mike

Style tweaks.

Add fsck_msdosfs.

Obtained from: NetBSD