Remove copyright strings ifdef'd out

We've ifdef'd out the copyright strings for some time now. Go ahead and
remove the ifdefs. Plus whatever other detritis was left over from other
recent removals.

Remove copyright strings ifdef'd out

We've ifdef'd out the copyright strings for some time now. Go ahead and
remove the ifdefs. Plus whatever other detritis was left over from other
recent removals. These copyright strings are present in the comments and
are largely from CSRG's attempt at adding their copyright to every
binary file (which modern interpretations of the license doesn't
require).

Sponsored by: Netflix

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usr.bin: Remove ancient SCCS tags.

Remove ancient SCCS tags from the tree, automated scripting, with two
minor fixup to keep things compiling. All the common forms in the tree
were removed with a pe

usr.bin: Remove ancient SCCS tags.

Remove ancient SCCS tags from the tree, automated scripting, with two
minor fixup to keep things compiling. All the common forms in the tree
were removed with a perl script.

Sponsored by: Netflix

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Remove $FreeBSD$: two-line .c pattern

Remove /^#include\s+<sys/cdefs.h>.*$\n\s+__FBSDID\("\$FreeBSD\$"\);\n/

Mark usage function as __dead2 in programs where it does not return

In most cases, usage does not return, so mark them as __dead2. For the
cases where they do return, they have not been marked __dea

Mark usage function as __dead2 in programs where it does not return

In most cases, usage does not return, so mark them as __dead2. For the
cases where they do return, they have not been marked __dead2.

Reviewed by: imp
Pull Request: https://github.com/freebsd/freebsd-src/pull/735

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Convert `cap_enter() < 0 && errno != ENOSYS` to `caph_enter() < 0`.

No functional change intended.

Merge ^/head r325999 through r326131.

General further adoption of SPDX licensing ID tags.

Mainly focus on files that use BSD 3-Clause license.

The Software Package Data Exchange (SPDX) group provides a specification
to make it easier f

General further adoption of SPDX licensing ID tags.

Mainly focus on files that use BSD 3-Clause license.

The Software Package Data Exchange (SPDX) group provides a specification
to make it easier for automated tools to detect and summarize well known
opensource licenses. We are gradually adopting the specification, noting
that the tags are considered only advisory and do not, in any way,
superceed or replace the license texts.

Special thanks to Wind River for providing access to "The Duke of
Highlander" tool: an older (2014) run over FreeBSD tree was useful as a
starting point.

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Merge ^/head r314420 through r314481.

Renumber copyright clause 4

Renumber cluase 4 to 3, per what everybody else did when BSD granted
them permission to remove clause 3. My insistance on keeping the same
numbering for legal reasons is

Renumber copyright clause 4

Renumber cluase 4 to 3, per what everybody else did when BSD granted
them permission to remove clause 3. My insistance on keeping the same
numbering for legal reasons is too pedantic, so give up on that point.

Submitted by: Jan Schaumann <jschauma@stevens.edu>
Pull Request: https://github.com/freebsd/freebsd/pull/96

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Merge ^/head r306412 through r306905.

Remove the duplicated code using Capsicum helpers.

Reviewed by: cem, ed, bapt, emaste
Differential Revision https://reviews.freebsd.org/D8140

Merge ^/head r305892 through r306302.

Move sys/capsicum.h includes after types.h or param.h

This is not actually documented or even implied in style(9). Make the change
to match convention. Someone should document this convention in s

Move sys/capsicum.h includes after types.h or param.h

This is not actually documented or even implied in style(9). Make the change
to match convention. Someone should document this convention in style(9).

Reported by: jhb
Sponsored by: EMC Dell Isilon

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tr(1): Capsicumify

This is a straightforward single input, single output program for
capsicum.

Reviewed by: bapt
Sponsored by: Dell EMC Isilon
Differential Revision: https://reviews.freebsd.org/D79

tr(1): Capsicumify

This is a straightforward single input, single output program for
capsicum.

Reviewed by: bapt
Sponsored by: Dell EMC Isilon
Differential Revision: https://reviews.freebsd.org/D7928

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Optimize [Cc]flag case: don't repeatedly add the last character of
string2 to squeeze cset when string2 reach its EOS state.

Back out non-collating [a-z] ranges (r302594).
Instead of changing the whole course to another POSIX-permitted way
for consistency and uniformity I decide to completely ignore missing
regex fucntiona

Back out non-collating [a-z] ranges (r302594).
Instead of changing the whole course to another POSIX-permitted way
for consistency and uniformity I decide to completely ignore missing
regex fucntionality and focus on fixing bugs in what we have now,
too many small obstacles we have choicing other way, counting ports.
Corresponding libc changes are backed out in r302824.

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Fully back out r302594 case 2) since overflow may happens.

Undo r302599 and partially r302594 case 2):
since WCHAR_MAX can be not a valid wchar value, it is easier to stay
inside wint_t.

Cast WCHAR_MAX to wint_t, it can be unsigned on some systems.

1) Following r302512 (remove collation support for [a-z]-ranges in libc)
remove collation support for a-z ranges here too.
It was implemented for single byte locales only in any case.

2) Reduce [Cc]

1) Following r302512 (remove collation support for [a-z]-ranges in libc)
remove collation support for a-z ranges here too.
It was implemented for single byte locales only in any case.

2) Reduce [Cc]flag loop to WCHAR_MAX, WINT_MAX here includes WEOF which is
not a character.

3) Optimize [Cc]flag case: don't repeatedly add the last character of
string2 to squeeze cset when string2 reach its EOS state.

4) Reflect in the manpage that [=equiv=] is implemented for single
byte locales only.

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Merge fresh head.

IFC @247348.

Sync with HEAD.

When copying the complement of the string loop to WINT_MAX as we are dealing
with a wint_t. WINT_MAX and WCHAR_MAX are the same on most architectures
except ARM EABI where wint_t is signed and wchar_

When copying the complement of the string loop to WINT_MAX as we are dealing
with a wint_t. WINT_MAX and WCHAR_MAX are the same on most architectures
except ARM EABI where wint_t is signed and wchar_t is unsigned.

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IFC @230489 (pending review).