Copy stable/11@r303970 to releng/11.0 as part of the 11.0-RELEASE
cycle.

Prune svn:mergeinfo from the new branch, and rename it to RC1.

Update __FreeBSD_version.

Use the quarterly branch for the default FreeBSD.conf pkg(8) repo and
the dvd1.iso packages population.

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

Copy head@r302406 to stable/11 as part of the 11.0-RELEASE cycle.
Prune svn:mergeinfo from the new branch, as nothing has been merged
here.

Additional commits post-branch will follow.

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

Fix various mdoc issues and some EOL whitespace.

Found with: mandoc -Tlint

mdoc: order prologue macros consistently by Dd/Dt/Os

Although groff_mdoc(7) gives another impression, this is the ordering
most widely used and also required by mdocml/mandoc.

Reviewed by: ru
Approved by: philip, ed (mentors)

Add a man page for the DNS accept filter.

Use the standard section name.

mdoc(7) police: Deal with self-xrefs.

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

mdoc(7) police: sort SEE ALSO xrefs (sort -b -f +2 -3 +1 -2).

Fix typo: "an socket" -> "a socket".
Place period at the end of AUTHORS section.

MFC after: 1 week

mdoc(7) police: uppercase document title.

Fix typos.

PR: 22901, 22902
Submitted by: Jimmy Olgeni <olgeni@uli.it>

Document the accf_data accept filter: "dataready"