Add sub-second packet timestamp checks for invalid micro/nano

[tcpdump] / tests / timestamp_invalid_nano.out

    1  17:16:09.999999999 IP 131.155.215.69.46656 > 137.116.81.94.80: tcp 0
    2  17:16:10.1000000000 (invalid ns) IP 137.116.81.94.80 > 131.155.215.69.46656: tcp 0
    3  17:16:10.2147483648 (invalid ns) IP 131.155.215.69.46656 > 137.116.81.94.80: tcp 0