This is the 1st commit message:
Adding tests
CoreOS/libpcap/Regression/bz1025841-Unable-to-filter-packets-by-VLAN-tag
CoreOS/libpcap/Regression/bz1427251-tcpdump-incorrectly-shows-0x8100-tag-for-802-1ad
CoreOS/libpcap/Regression/bz1785330-Invalid-IPv4-addresses-are-accepted-without
CoreOS/libpcap/Regression/libpcap-creation-invalid-pcap-files
CoreOS/libpcap/Regression/tcpdump-icmp6-option-can-t-catch-icmpv6-package-with-large-mtu