[src/matt-nb5-mips64]: src Closing old heads

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

details:   https://anonhg.NetBSD.org/src/rev/ae9779be1f45
branches:  matt-nb5-mips64
changeset: 931939:ae9779be1f45
user:      srcmastr <srcmastr%NetBSD.org@localhost>
date:      Fri May 01 04:03:02 2020 +0000

description:
Closing old heads