Copy stable/9 to releng/9.3 as part of the 9.3-RELEASE cycle.

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

Copy head to stable/9 as part of 9.0-RELEASE release cycle.

Approved by: re (implicit)

mdoc(7) police: Scheduled sweep.

Document the -n option and fix manpage Fl usage.

Obtained from: TrustedBSD Project
Sponsored by: DARPA, Network Associates Laboratories

Add -h flags to each of the *extattr(8) commands, indicating that
the command should not follow the symlink if the target file is a
symlink. Invoke the extattr_*_link(2) version of the system call
in that situation, instead of extattr_*_file(2). This is
consistent with other attribute management tools in the system.

Obtained from: TrustedBSD Project
Sponsored by: DARPA, Network Associates Laboratories

Add the new userland tool for manipulating extended attributes.

This will replace the existing getextattr(8) and setextattr(8) with
a single binary responding to the names getextattr, setextattr,
rmextattr and lsextattr.

This program is not yet connected to the build.

Sponsored by: DARPA and NAI Labs.