- Copy stable/10 (r259064) to releng/10.0 as part of the
10.0-RELEASE cycle.
- Update __FreeBSD_version [1]
- Set branch name to -RC1

[1] 10.0-CURRENT __FreeBSD_version value ended at '55', so
start releng/10.0 at '100' so the branch is started with
a value ending in zero.

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

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

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

Add "human" option to print IPv4/IPv6 flows in human-readable format.
Show IPv4/IPv6 header IFF there are some flows following.
Wrap some long lines.

Sponsored by Yandex LLC

Reviewed by: glebius (previous version)
Approved by: ae(mentor)
MFC after: 1 week

Fixes to man8 groff mandoc style, usage mistakes, or typos.

PR: 168016
Submitted by: Nobuyuki Koganemaru
Approved by: gjb
MFC after: 3 days

Conditionally compile in the IPv4/IPv6 address family support.
Test it with feature_present(3), so that we do not end up with passing
an unsupported version to NgSendMsg(3).

Approved by: glebius

Update manual page. Mention IPv6 support, and notice that main
argument isn't actually a node, but a netgraph path.

Rewrite the flowctl utility to add it support for displaying
both IPv4 and IPv4 flows.

mdoc: drop redundant .Pp and .LP calls

They have no effect when coming in pairs, or before .Bl/.Bd

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)

Get the other NG_PATHLEN while I'm here too :(.

Use NG_PATHSIZ instead of NG_PATHLEN + 1.

Implement "verbose" optional keyword for "show" command. This is analog
of Cisco's "show ip cache verbose flow" command.

Remove code, inherited from ipacctctl, which sets socket to non-blocking
mode, since this introduces problems on SMP.

Remove redundant parameter inherited from ipacctctl.

Added the EXIT STATUS section where appropriate.

Man page for flowctl utility.

mdoc(7) lessons by: ru
Approved by: julian (mentor)

- Remove advertising clause from copyright [1]
- Change my email to glebius@FreeBSD.org

Requested by: ru [1]

Userland control utility for ng_netflow.

Approved by: julian (mentor)