sysutils/lsof: upgrade to 4.90J: fix nullfs in FreeBSD 11+
Submitted by: "Jamie Landeg-Jones" <jamie@catflap.org>
Obtained from: Vic Abell <vabell@lsof.comcastbiz.net> (author)
Approved by: adamw (mentor)
Differential Revision: https://reviews.freebsd.org/D10465