import original libpcap-0.9.4 from tcpdump.org,
with unrelated subdirs omitted
import tcpdump-3.9.7 (after running the tcpdump2netbsd script and
defusing NetBSD id strings used as reference)
Import libpcap-1.1.1
try again fixing RCS keywords
Import tcpdump-4.1.1
import 1.3.0
import tcpdump 4.3.0
Import libpcap-1.5.2
Import tcpdump 4.5.1