[src/netbsd-1-6]: src Closing old heads

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

details:   https://anonhg.NetBSD.org/src/rev/f7cee02b3706
branches:  netbsd-1-6
changeset: 931961:f7cee02b3706
user:      srcmastr <srcmastr%NetBSD.org@localhost>
date:      Fri May 01 04:04:05 2020 +0000

description:
Closing old heads