Revision 421552

Fix botched merge in r421527 by merging r418252, r418405, and r418838
as well.

Approved by:	ports-secteam (feld)

r418252:
Fix build under 12.0-CURRENT.

r418405:
upgrade to 4.90C
- support for DTYPE_PTS
- FreeBSD 12.0-CURRENT

r418838:
Update to 4.90E.

r421506:
Update to 4.90F.

Bug fix:
- It fixes a race condition when lsof is looking up information on a
  socket's TCP state.  The worst case of the race is that lsof gets a
  segmentation fault.

PR:		212457
Submitted by:	maintainer (Larry Rosenman)