[PATCH v2] add -Y test for waitid, skip if /proc is not mounted

[Dmitry V. Levin]

On Sat, Mar 26, 2022 at 11:18:19PM +0800, As Ss wrote:
> No, it doesn't pass the test in my environment. It acts differently in
> waitid #3 and waitid #4 where the command name is not attached after
> si_pid in the strace output.

Tests should pass, otherwise they couldn't be used for CI.


-- 
ldv