kern/52227: lockstat example from the man page does not work

[n54%gmx.com@localhost]

>Number:         52227
>Category:       kern
>Synopsis:       lockstat example from the man page does not work
>Confidential:   no
>Severity:       non-critical
>Priority:       low
>Responsible:    kern-bug-people
>State:          open
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Thu May 11 22:35:00 +0000 2017
>Originator:     Kamil Rytarowski
>Release:        NetBSD 7.99.71 amd64
>Organization:
TNF
>Environment:
NetBSD chieftec 7.99.71 NetBSD 7.99.71 (GENERIC) #28: Thu May 11 03:32:21 CEST 2017  root@chieftec:/public/netbsd-root/sys/arch/amd64/compile/GENERIC amd64
>Description:
# lockstat -L uvm_pageqlock sleep 10
Gives no results
>How-To-Repeat:
man lockstat(8) and copy-paste example command
>Fix:
N/A