Copy head (r256279) to stable/10 as part of the 10.0-RELEASE cycle.

Approved by: re (implicit)
Sponsored by: The FreeBSD Foundation

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

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

Back out the previous change to rename.2. The previous rename()
behaviour of returning EINVAL when ".." is passed as either argument
has been restored.

rmdir("..") now returns EINVAL instead of EPERM. Document the
previously undocumented behaviour of rmdir(".") returning EINVAL
as required by POSIX and SUSv3. Bump the man page change date.

undelete("..") now returns EINVAL instead of EPERM. Bump the man
page change date.

MFC after: 3 days

rename(), rmdir(), and undelete() fail with EPERM if the last component
of the path is "..".

MFC after: 3 days

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 HISTORY section, call syscall a function,
to be safe.

Uniformly refer to a file system as "file system".

Approved by: re

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

mdoc(7) police: s/BSD/.Bx/ where appropriate.

Use the ``.Rv -std'' mdoc(7) macro in appropriate cases.

Reviewed by: ru

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

Rename (after a repo-copy) some mount(8) programs:

mount_fdesc -> mount_fdescfs
mount_null -> mount_nullfs
mount_portal -> mount_portalfs
mount_umap -> mount_umapfs
mount_union -> mount_unionfs

mdoc(7) police: Nm -> Fn where appropriate.

Use `Er' variable to define first column width in ERRORS section. It was
initially suggested by mdoc(7) style, but was broken over the years

Introduce ".Lb" macro to libc manpages.

More libraries manpages updates following.

$Id$ -> $FreeBSD$

Remove some 4.3BSDish anacronisims that stated that it was an
error for a pathname to contain a character with the high-order
bit set.

Inspired by: joerg's previous commit

Add $Id$, to make it simpler for members of the translation teams to
track.

The $Id$ line is normally at the bottom of the main comment block in the
man page, separated from the rest of the manpage by an empty comment,
like so;

.\" $Id$
.\"

If the immediately preceding comment is a @(#) format ID marker than the
the $Id$ will line up underneath it with no intervening blank lines.
Otherwise, an additional blank line is inserted.

Approved by: bde

This commit was generated by cvs2svn to compensate for changes in r23658,
which included commits to RCS files with non-trunk default branches.

Import CSRG 4.4BSD-Lite2 lib/libc onto vendor branch