[src/yamt-km]: src Closing old heads

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

details:   https://anonhg.NetBSD.org/src/rev/a158ffe3430f
branches:  yamt-km
changeset: 932122:a158ffe3430f
user:      srcmastr <srcmastr%NetBSD.org@localhost>
date:      Fri May 01 04:07:47 2020 +0000

description:
Closing old heads