bin/53941: something ate my /etc/motd

[martin%NetBSD.org@localhost]

>Number:         53941
>Category:       bin
>Synopsis:       something ate my /etc/motd
>Confidential:   no
>Severity:       serious
>Priority:       medium
>Responsible:    bin-bug-people
>State:          open
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Mon Feb 04 11:30:00 +0000 2019
>Originator:     Martin Husemann
>Release:        NetBSD 8.99.34
>Organization:
The NetBSD Foundation, Inc.
>Environment:
System: NetBSD night-owl.duskware.de 8.99.34 NetBSD 8.99.34 (NIGHT-OWL) #648: Mon Feb 4 07:34:25 CET 2019 martin%night-owl.duskware.de@localhost:/usr/src/sys/arch/amd64/compile/NIGHT-OWL amd64
Architecture: x86_64
Machine: amd64
>Description:

During the last few updates (after several kernel version bumps in the last
few days) the /etc/motd file on several of my machines got truncated.

I did not spot the exact point when this happened, but there were no crashes
involved and it happened on multiple machines, so I suspect something
systematically being wrong.

>How-To-Repeat:
no idea yet

>Fix:
n/a