[src/netbsd-9]: src Closing old heads

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

details:   https://anonhg.NetBSD.org/src/rev/8b2117e0e277
branches:  netbsd-9
changeset: 1025148:8b2117e0e277
user:      srcmastr <srcmastr%NetBSD.org@localhost>
date:      Mon Nov 08 05:51:06 2021 +0000

description:
Closing old heads