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)

The -d flag is non-optional.

PR: 143694
Submitted by: Nikolai Saoukh <nms+bsd@otdel-1.org>
MFC after: 1 week

add uathload.8

Reviewed by: brueffer