kern/55742: t_renamerace test cases unexpectedly succeed on -9

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

>Number:         55742
>Category:       kern
>Synopsis:       t_renamerace test cases unexpectedly succeed on -9
>Confidential:   no
>Severity:       non-critical
>Priority:       medium
>Responsible:    kern-bug-people
>State:          open
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Wed Oct 21 19:05:00 +0000 2020
>Originator:     Andreas Gustafsson
>Release:        NetBSD-9 branch as of 2020.10.18.19.24.30
>Organization:
>Environment:
System: NetBSD
Architecture: x86_64
Machine: amd64
>Description:

Running the ATF tests on the -9 branch, the nfs_renamerace_cycle and
puffs_renamerace_cycle test cases of the fs/vfs/t_renamerace test
program report "Test case was expecting a failure but none were raised".

>How-To-Repeat:

>Fix: