[src/NetBSD]: src Close old heads

[Joerg Sonnenberger <joerg%bec.de@localhost>]

details:   https://anonhg.NetBSD.org/src/rev/7caf3b9b5103
branches:  NetBSD
changeset: 450775:7caf3b9b5103
user:      Joerg Sonnenberger <joerg%bec.de@localhost>
date:      Thu Apr 25 16:49:10 2019 +0200

description:
Close old heads