libsys: relocate implementations and manpages

Remove core system call implementations and documentation to lib/libsys
and lib/libsys/<arch> from lib/libc/sys and lib/libc/<arch>/<sys>.
Update paths

libsys: relocate implementations and manpages

Remove core system call implementations and documentation to lib/libsys
and lib/libsys/<arch> from lib/libc/sys and lib/libc/<arch>/<sys>.
Update paths to allow libc to find them in their new home.

Reviewed by: kib, emaste, imp
Pull Request: https://github.com/freebsd/freebsd-src/pull/908

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lib: 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 s

lib: 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 $FreeBSD$: one-line nroff pattern

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

man page of select(2) should mention pselect(2)

Reviewed by: bcr (manpages), kib, trasz
Approved by: kib (mentor)
MFC after: 7 days
Sponsored by: Mysterious Code Ltd.
Differential Revision: https://

man page of select(2) should mention pselect(2)

Reviewed by: bcr (manpages), kib, trasz
Approved by: kib (mentor)
MFC after: 7 days
Sponsored by: Mysterious Code Ltd.
Differential Revision: https://reviews.freebsd.org/D25169

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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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Remove trailing whitespace per mdoc lint warning

Disussed with: gavin
No objection from: doc
Approved by: joel
MFC after: 3 days

Add note about other systems.

Per Regents of the University of Calfornia letter, remove advertising
clause.

# If I've done so improperly on a file, please let me know.

Sort sections.

``NULL is a specific instance of a null pointer constant; the generic is
a "null pointer".''

Making good use of the excellent explanations sent to me by Ruslan
Ermilov, Garrett Wollman and Bruce Eva

``NULL is a specific instance of a null pointer constant; the generic is
a "null pointer".''

Making good use of the excellent explanations sent to me by Ruslan
Ermilov, Garrett Wollman and Bruce Evans, correct the descriptions of
null pointers. They are just "null pointers", not nil, not NULL or
".Dv NULL".

Suggested by: ru, wollman, bde
Reviewed by: ru, wollman
Pointy hat: keramida

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Use .Dv NULL when referring to NULL C pointers, instead of "nil".

Mechanically kill hard sentence breaks.

Shave-off troff cycles by invoking .Fa only once.

Submitted by: ru
MFC after: 1 week

Document missing EFAULT errno value.

MFC after: 2 weeks

Xref kqueue and poll

mdoc(7): Use the new feature of the .In macro.

mdoc(7) police: "The .Fa argument.".

mdoc(7) police: Tidy up the syscall language.

Stop calling system calls "function calls".

Use "The .Fn system call" a-la "The .Nm utility".

When referring to a non-BSD implementation in
the HISTOR

mdoc(7) police: Tidy up the syscall language.

Stop calling system calls "function calls".

Use "The .Fn system call" a-la "The .Nm utility".

When referring to a non-BSD implementation in
the HISTORY section, call syscall a function,
to be safe.

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Update SYNOPSIS to reflect the standardized header. Add STANDARDS
section.

PR: 43270

mdoc(7) police: Use the new .In macro for #include statements.

mdoc(7) police: join split punctuation to macro calls.

Remove whitespace at EOL.

mdoc(7) police: removed HISTORY info from the .Os call.

Use .St -susv2 rather than "The Single UNIX Specification".

Submitted by: sheldonh

Soften the statement about select's timeout argument. This part of
the system likely won't change in the future, but the warning is a
good idea.