install/56467: sysinst output no longer scrolls correctly

[kim%netbsd.org@localhost (Kimmo Suominen)]

>Number:         56467
>Category:       install
>Synopsis:       sysinst output no longer scrolls correctly
>Confidential:   no
>Severity:       non-critical
>Priority:       low
>Responsible:    install-manager
>State:          open
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Wed Oct 27 10:40:00 +0000 2021
>Originator:     kim%netbsd.org@localhost (Kimmo Suominen)
>Release:        NetBSD 9.99.92
>Organization:
>Environment:
System: NetBSD rendez-vous.gw.fi 9.99.92 NetBSD 9.99.92 (GENERIC) #0: Tue Oct 26 23:37:40 UTC 2021 mkrepro%mkrepro.NetBSD.org@localhost:/usr/src/sys/arch/amd64/compile/GENERIC amd64
Architecture: x86_64
Machine: amd64
>Description:

	For some time now sysinst output is no longer scrolling
	correctly but instead wrapping to a point higher on the
	screen. This affects the list of successful and failed fixes.

	Here is a screenshot displaying the issue:
	http://www.netbsd.org/~kim/sysinst-2021-10-26.png

>How-To-Repeat:

	Run sysinst to upgrade your system.

>Fix: