git: rc.d: Add ip6addrctl (enabled by default with policy AUTO)

[Aaron LI]

commit 03137732640d591d74a270e2e62930e966c5145f
Author: Aaron LI <***@aaronly.me>
Date: Tue Nov 6 04:25:17 2018 +0800

rc.d: Add ip6addrctl (enabled by default with policy AUTO)

Bring in the ip6addrctl rc script from FreeBSD. It is enabled by
default with policy "AUTO", so the IPv4/IP6 preference is configured on
startup. The rc variable "ip6addrctl_policy" is used to adjust the
preference (AUTO, ipv6_prefer, ipv6_prefer).

See the rc.conf(5) man page for more details.

Summary of changes:
etc/defaults/rc.conf | 8 +++-
etc/rc.d/Makefile | 2 +-
etc/rc.d/ip6addrctl | 111 +++++++++++++++++++++++++++++++++++++++++++++++
share/man/man5/rc.conf.5 | 54 ++++++++++++++++++++++-
4 files changed, 172 insertions(+), 3 deletions(-)
create mode 100644 etc/rc.d/ip6addrctl

http://gitweb.dragonflybsd.org/dragonfly.git/commitdiff/03137732640d591d74a270e2e62930e966c5145f