- Copy stable/10@296371 to releng/10.3 in preparation for 10.3-RC1
builds.
- Update newvers.sh to reflect RC1.
- Update __FreeBSD_version to reflect 10.3.
- Update default pkg(8) configuration to use the quarterly branch.

Approved by: re (implicit)

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

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

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.