Accidentally inconsistent with PORTVERSION name
That's not working OOTB.
===> packetdrill-0.0.2018081901 depends on file: /usr/local/sbin/pkg - found ===> Fetching all distfiles required by packetdrill-0.0.2018081901 for building ===> Extracting for packetdrill-0.0.2018081901 => No SHA256 checksum recorded for freebsd-net-packetdrill-0.0.2018081901-d449b32_GH0.tar.gz. => No suitable checksum found for freebsd-net-packetdrill-0.0.2018081901-d449b32_GH0.tar.gz. *** Error code 1
My fault, had to check closer. Kevin, please use make makesum next time to get consistent distinfo.