Add comments to fix lint errors.
Add comments to fix lint errors.

xuzhaokui/gopacket,xuzhaokui/gopacket,skyportsystems/gopacket,google/gopacket,google/gopacket,skyportsystems/gopacket,levigross/gopacket,rouzier/gopacket,rouzier/gopacket,levigross/gopacket,google/gopacket,rouzier/gopacket,skyportsystems/gopacket,xuzhaokui/gopacket,levigross/gopacket