kern/56554: ACPI Debug: "_TMP Method"

[gson%gson.org@localhost (Andreas Gustafsson)]

>Number:         56554
>Category:       kern
>Synopsis:       ACPI Debug:  "_TMP Method"
>Confidential:   no
>Severity:       non-critical
>Priority:       medium
>Responsible:    kern-bug-people
>State:          open
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Sun Dec 19 11:40:00 +0000 2021
>Originator:     Andreas Gustafsson
>Release:        NetBSD-current, source date 2021.12.18.18.05.55
>Organization:

>Environment:
System: NetBSD
Architecture: x86_64
Machine: amd64
>Description:

Since yesterday's ACPI update, the console of my amd64 real hardware
testbed is getting spammed with messages like this one once every 30
seconds:

  [ 571.4962196] ACPI Debug:  "_TMP Method"

There are two bugs here: the messages being printed in the first
place, and the double space after the colon.  This PR is to track the
former.

This is on a HP ProLiant DL360 G7.  For the full dmesg and many
examples of the debug message, see the console log at:

  https://www.gson.org/netbsd/bugs/build/amd64-baremetal/2021/2021.12.18.18.05.55/test.log

>How-To-Repeat:

Build and boot -current if it builds, or a time-based checkout of
source date 2021.12.18.18.05.55.

>Fix: