MFH: r461952

net/quagga: update 1.2.2 -> 1.2.3

• doc/security: Security announcements for 4 issues
• doc/security: Add a doc/security folder and template for announcements
• doc: Add commit message template, suitable for commit.template
• bgpd: remove stream_pnt use for notify data
• lib/privs: Remove of CAP_NET_BROADCAST forgot to decrement array count
• bgpd/security: debug print of received NOTIFY data can over-read msg array
• bgpd/security: fix infinite loop on certain invalid OPEN messages
• bgpd/security: Fix double free of unknown attribute
• bgpd/security: invalid attr length sends NOTIFY with data overrun
• zebra/redistribute: Implicit withdraw needs to be explicit if update isn't sent
• doc: 'match aspath' should be 'match as-path'
• bgpd: fix SIGBUS
• bgpd: Fix mistake in NHT of connected IPv6 next-hops preventing route advertisements
• Updated the protocol supported list
• lib/command: make config file robust more robust and kinder to system
• doc: Bring documentation on Zserv header up to date.
• bgpd: distance comment
• doc: Fix small but important logical mistake in community-list example
• doc: document that changing bgp distance needs a hard clear of routes
• bgpd: malformed attribute handling: don't pass on, and add missing notify
• lib/filter: change add/delete callback hooks to robustly delete
• Revert "lib: Fix Free Pointer dereference in lib/filter.c"
• infra/buildbot: allow bots to be picked out by installed compiler.
• infra/buildbot: Add bots, add JSON "env" config variable, poll all git branches
• lib: ptr macro arg may need brackets in some cases
• distro/systemd: add man page ref and set config file permissions
• doc: Fix manpage number for ospfclient.
• vtysh: Fix spelling errors in strings flagged by lintian.
• doc: Tweak grammar in zebra manpage to keep lintian happy.
• vtysh: print error if PAM auth does not succeed
• lib/thread: get rid of the shallow-copy thread_fetch add a sane thread_main
• buildbot/master: use a helper generator for make cmd string list
• buildbot/master: fix the common steps
• buildbot/master: Add OBSD bot, and support for environment variable config
• build: AC_EGREPP_CPP actions wrong way around, worked by accident mostly.
• build: Work around illumos still shipping

Security: CVE-2018-5378, https://gogs.quagga.net/Quagga/quagga/src/master/doc/security/Quagga-2018-0543.txt

		CVE-2018-5379, https://gogs.quagga.net/Quagga/quagga/src/master/doc/security/Quagga-2018-1114.txt
		CVE-2018-5380, https://gogs.quagga.net/Quagga/quagga/src/master/doc/security/Quagga-2018-1550.txt
		CVE-2018-5381, https://gogs.quagga.net/Quagga/quagga/src/master/doc/security/Quagga-2018-1975.txt

Approved by: portmgr (swills)