Pull up following revision(s) (requested by roy in ticket #478):
doc/3RDPARTY: 1.1472, 1.1474, 1.1489, 1.1492
external/bsd/dhcpcd/dist/.gitignore: up to 1.4
external/bsd/dhcpcd/dist/LICENSE: up to 1.1.1.2
external/bsd/dhcpcd/dist/Makefile.inc: up to 1.1.1.2
external/bsd/dhcpcd/dist/README.md: up to 1.1.1.3
external/bsd/dhcpcd/dist/compat/crypt/hmac.c: up to 1.1.1.1
external/bsd/dhcpcd/dist/compat/crypt/hmac.h: up to 1.1.1.1
external/bsd/dhcpcd/dist/compat/crypt/md5.h: up to 1.1.1.2
external/bsd/dhcpcd/dist/compat/strlcpy.c: up to 1.1.1.1
external/bsd/dhcpcd/dist/compat/strlcpy.h: up to 1.1.1.1
external/bsd/dhcpcd/dist/configure: up to 1.1.1.4
external/bsd/dhcpcd/dist/hooks/01-test: up to 1.1.1.2
external/bsd/dhcpcd/dist/hooks/dhcpcd-run-hooks.8.in: up to 1.1.1.3
external/bsd/dhcpcd/dist/hooks/dhcpcd-run-hooks.in: up to 1.1.1.3
external/bsd/dhcpcd/dist/src/Makefile: up to 1.1.1.4
external/bsd/dhcpcd/dist/src/arp.c: up to 1.1.1.5
external/bsd/dhcpcd/dist/src/arp.h: up to 1.1.1.4
external/bsd/dhcpcd/dist/src/auth.c: up to 1.1.1.4
external/bsd/dhcpcd/dist/src/auth.h: up to 1.1.1.2
external/bsd/dhcpcd/dist/src/bpf.c: up to 1.6
external/bsd/dhcpcd/dist/src/bpf.h: up to 1.1.1.4
external/bsd/dhcpcd/dist/src/common.c: up to 1.1.1.4
external/bsd/dhcpcd/dist/src/common.h: up to 1.1.1.2
external/bsd/dhcpcd/dist/src/control.c: up to 1.1.1.3
external/bsd/dhcpcd/dist/src/control.h: up to 1.1.1.2
external/bsd/dhcpcd/dist/src/crypt/crypt.h: delete
external/bsd/dhcpcd/dist/src/crypt/hmac_md5.c: delete
external/bsd/dhcpcd/dist/src/defs.h: up to 1.1.1.8
external/bsd/dhcpcd/dist/src/dev.c: up to 1.1.1.3
external/bsd/dhcpcd/dist/src/dev.h: up to 1.1.1.2
external/bsd/dhcpcd/dist/src/dhcp-common.c: up to 1.1.1.4
external/bsd/dhcpcd/dist/src/dhcp-common.h: up to 1.1.1.2
external/bsd/dhcpcd/dist/src/dhcp.c: up to 1.7
external/bsd/dhcpcd/dist/src/dhcp.h: up to 1.1.1.4
external/bsd/dhcpcd/dist/src/dhcp6.c: up to 1.1.1.8
external/bsd/dhcpcd/dist/src/dhcp6.h: up to 1.1.1.3
external/bsd/dhcpcd/dist/src/dhcpcd-embedded.c.in: up to 1.1.1.2
external/bsd/dhcpcd/dist/src/dhcpcd-embedded.h.in: up to 1.1.1.2
external/bsd/dhcpcd/dist/src/dhcpcd.8.in: up to 1.1.1.7
external/bsd/dhcpcd/dist/src/dhcpcd.c: up to 1.7
external/bsd/dhcpcd/dist/src/dhcpcd.conf: up to 1.1.1.2
external/bsd/dhcpcd/dist/src/dhcpcd.conf.5.in: up to 1.1.1.5
external/bsd/dhcpcd/dist/src/dhcpcd.h: up to 1.1.1.4
external/bsd/dhcpcd/dist/src/eloop.c: up to 1.1.1.5
external/bsd/dhcpcd/dist/src/eloop.h: up to 1.1.1.3
external/bsd/dhcpcd/dist/src/if-bsd.c: up to 1.1.1.6
external/bsd/dhcpcd/dist/src/if-linux-wext.c: up to 1.1.1.2
external/bsd/dhcpcd/dist/src/if-linux.c: up to 1.1.1.7
external/bsd/dhcpcd/dist/src/if-options.c: up to 1.6
external/bsd/dhcpcd/dist/src/if-options.h: up to 1.1.1.5
external/bsd/dhcpcd/dist/src/if-sun.c: up to 1.1.1.3
external/bsd/dhcpcd/dist/src/if.c: up to 1.1.1.5
external/bsd/dhcpcd/dist/src/if.h: up to 1.1.1.4
external/bsd/dhcpcd/dist/src/ipv4.c: up to 1.1.1.7
external/bsd/dhcpcd/dist/src/ipv4.h: up to 1.1.1.3
external/bsd/dhcpcd/dist/src/ipv4ll.c: up to 1.1.1.4
external/bsd/dhcpcd/dist/src/ipv4ll.h: up to 1.1.1.3
external/bsd/dhcpcd/dist/src/ipv6.c: up to 1.1.1.7
external/bsd/dhcpcd/dist/src/ipv6.h: up to 1.1.1.5
external/bsd/dhcpcd/dist/src/ipv6nd.c: up to 1.1.1.6
external/bsd/dhcpcd/dist/src/ipv6nd.h: up to 1.1.1.4
external/bsd/dhcpcd/dist/src/logerr.c: up to 1.1.1.2
external/bsd/dhcpcd/dist/src/logerr.h: up to 1.1.1.2
external/bsd/dhcpcd/dist/src/route.c: up to 1.1.1.5
external/bsd/dhcpcd/dist/src/route.h: up to 1.1.1.3
external/bsd/dhcpcd/dist/src/sa.c: up to 1.1.1.3
external/bsd/dhcpcd/dist/src/sa.h: up to 1.1.1.2
external/bsd/dhcpcd/dist/src/script.c: up to 1.1.1.4
external/bsd/dhcpcd/dist/src/script.h: up to 1.1.1.2
external/bsd/dhcpcd/dist/tests/crypt/Makefile: up to 1.1.1.2
external/bsd/dhcpcd/dist/tests/crypt/run-test.c: up to 1.1.1.2
external/bsd/dhcpcd/dist/tests/crypt/test.h: up to 1.1.1.2
external/bsd/dhcpcd/dist/tests/crypt/test_hmac_md5.c: up to 1.1.1.3
external/bsd/dhcpcd/dist/tests/eloop-bench/Makefile: up to 1.1.1.2
external/bsd/dhcpcd/dist/tests/eloop-bench/eloop-bench.c: up to 1.1.1.2
external/bsd/dhcpcd/include/config.h: up to 1.2
external/bsd/dhcpcd/sbin/Makefile.inc: up to 1.5
external/bsd/dhcpcd/sbin/dhcpcd/Makefile: up to 1.42
Update dhcpcd to 7.0.0.

(snj)