Update libpcap to 1.9.0

Test: compile
Change-Id: I5b036bc4544b3150629b943d3a7896d7dc03fec9
diff --git a/pcap_datalink.3pcap.in b/pcap_datalink.3pcap.in
index be50a64..a32f15e 100644
--- a/pcap_datalink.3pcap.in
+++ b/pcap_datalink.3pcap.in
@@ -41,7 +41,7 @@
 that has not yet been activated by
 .BR pcap_activate() .
 .PP
-.I http://www.tcpdump.org/linktypes.html
+.I https://www.tcpdump.org/linktypes.html
 lists the values
 .B pcap_datalink()
 can return and describes the packet formats that