[src/netbsd-7-0]: src Closing old heads

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

details:   https://anonhg.NetBSD.org/src/rev/66a7f1fd27e0
branches:  netbsd-7-0
changeset: 931991:66a7f1fd27e0
user:      srcmastr <srcmastr%NetBSD.org@localhost>
date:      Fri May 01 04:04:48 2020 +0000

description:
Closing old heads