João Valverde authored Apr 11, 2022 and João Valverde committed Apr 11, 2022

If we don't have an offset, don't print anything with underline.

Also it can underline filters using macros correctly now.

$ tshark -Y 'ip and ${private_ipv4:ip.sr}' -r /dev/null
tshark: Left side of "==" expression must be a field or function, not "ip.sr".
    ip and ip.sr == 192.168.0.0/16 or ip.sr == 172.16.0.0/12 or ip.sr == 10.0.0.0/8
           ^~~~~