[src/netbsd-6-0]: src Closing old heads

[srcmastr <srcmastr%NetBSD.org@localhost>]

details:   https://anonhg.NetBSD.org/src/rev/4149f3c3186a
branches:  netbsd-6-0
changeset: 931982:4149f3c3186a
user:      srcmastr <srcmastr%NetBSD.org@localhost>
date:      Fri May 01 04:04:38 2020 +0000

description:
Closing old heads