git: 20616273d521..35af88c96350 - vendor/libpcap - vendor branch updated

[Joseph Mingrone]

The branch vendor/libpcap has been updated by jrm:

URL: https://cgit.FreeBSD.org/src/log/?id=20616273d521..35af88c96350

35af88c96350 Import libpcap 1.10.3