ftp/linux-c7-curl – seems to be a runtime dependency. If not installed, then /usr/local/bin/wfcmgr fails (with check boxes greyed out, unusable) as pictured at <https://forums.FreeBSD.org/threads/81668/post-527470>
Initially observed with FreeBSD 14.0-CURRENT. Reproducible at a separate computer with FreeBSD 13.0-RELEASE-p3.