Remove $FreeBSD$: two-line nroff pattern

Remove /^\.\\"\n\.\\"\s*\$FreeBSD\$$\n/

IFC @r269962

Submitted by: Anish Gupta (akgupt3@gmail.com)

Merge head from 7/28

Sync to HEAD@r269943.

use .Mt to mark up email addresses consistently (part6)

PR: 191174
Submitted by: Franco Fichtner <franco at lastsummer.de>

sh: Add kill builtin.

This allows specifying a %job (which is equivalent to the corresponding
process group).

Additionally, it improves reliability of kill from sh in high-load
situations and ensur

sh: Add kill builtin.

This allows specifying a %job (which is equivalent to the corresponding
process group).

Additionally, it improves reliability of kill from sh in high-load
situations and ensures "kill" finds the correct utility regardless of PATH,
as required by POSIX (unless the undocumented %builtin mechanism is used).

Side effect: fatal errors (any error other than kill(2) failure) now return
exit status 2 instead of 1. (This is consistent with other sh builtins, but
not in NetBSD.)

Code size increases about 1K on i386.

Obtained from: NetBSD

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Sync: merge r215464 through r215708 from ^/head.

sh: Add printf builtin.

This was removed in 2001 but I think it is appropriate to add it back:
* I do not want to encourage people to write fragile and non-portable echo
commands by making printf

sh: Add printf builtin.

This was removed in 2001 but I think it is appropriate to add it back:
* I do not want to encourage people to write fragile and non-portable echo
commands by making printf much slower than echo.
* Recent versions of Autoconf use it a lot.
* Almost no software still wants to support systems that do not have
printf(1) at all.
* In many other shells printf is already a builtin.

Side effect: printf is now always the builtin version (which behaves
identically to /usr/bin/printf) and cannot be overridden via PATH (except
via the undocumented %builtin mechanism).

Code size increases about 5K on i386. Embedded folks might want to replace
/usr/bin/printf with a hard link to /usr/bin/alias.

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Remove Xo/Xc in It, which is not yet supported by mdocml but
can be worked around trivially in this case.

MFC r207817: builtin(1): sh has no @ builtin command.

builtin(1): sh has no @ builtin command.

MFC after: 1 week

MFC r207168: builtin(1): Add missing escaping for !, . and : in the table.

This caused these commands to look differently (not bold) from the other
commands in the table (bold).

MFC r207166: builtin(1): Mention [ sh builtin.

Update to current version of head.

Make hash, type and ulimit available via execve().

These are specified by POSIX but are not special builtins, and therefore
need to be available via execve() and utilities like time, nohup, xargs.
(

Make hash, type and ulimit available via execve().

These are specified by POSIX but are not special builtins, and therefore
need to be available via execve() and utilities like time, nohup, xargs.
(Note that hash was moved from the XSI option to the base in the 2008
standard.)

Like most of the POSIX "regular builtin commands", these need to be executed
in a shell environment for full functionality, although they may still be of
some use outside one.

Unlike the POSIX special and regular builtin commands, POSIX does not
require these to be found before a PATH search, although that could be an
oversight.

Like some of the utilities already provided by usr.bin/alias, these may lead
to confusing results when invoked from csh(1).

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builtin(1): Add missing escaping for !, . and : in the table.

This caused these commands to look differently (not bold) from the other
commands in the table (bold).

MFC after: 1 week

builtin(1): Mention [ sh builtin.

MFC after: 1 week

Fix markup.

Make the SYNOPSIS section more meaningful.

PR: docs/85066
Submitted by: Gary W. Swearingen
MFC after: 3 days

Add the times builtin.

Added missing builtins; a few other clean-ups.

- The first "alias" "Yes" should be "No**".
- Made "builtin echo command" consistent with csh and sh manpages.
- In group of 3 interactive commands, 2

Added missing builtins; a few other clean-ups.

- The first "alias" "Yes" should be "No**".
- Made "builtin echo command" consistent with csh and sh manpages.
- In group of 3 interactive commands, 2 used .Pa instead of .Ic.
- "Name" section now has "builtin" and "built-in" for better apropos.
- Added these builtins: !, %, ., :, @, {, }, local, return

PR: docs/85065
Approved by: keramida
MFC after: 3 days

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Add a missing ** to the 'command' command.

PR: 79877
Submitted by: Kazuaki Oda <ybbkaz@yahoo.co.jp>
Reviewed by: ru
Approved by: re
MFC after: 1 day

Add missing command name.

(The error was visible on stderr.)

Approved by: re

Update list of utilitys which are implemented externally, Xref info.1,
clean up some text, bump doc date.

PR: 47690
Submitted by: Gary W. Swearingen <swear@attbi.com> (original version)

Fixed the misplaced $FreeBSD$.