Fix race in tst-mqueue5

[Carlos O'Donell]

On 01/13/2016 09:00 AM, Adhemerval Zanella wrote:
>> While I agree that any fix that makes tst-mqueue5 fail less spuriously is a good
>> thing, I'm curious about your review of the test as a whole (now that I've looked
>> at it again).
> 
> I would say to just remove the spurious synchronization issues, specially the ones
> that might arise with the use of 'sleep' in bad ways.

Does that mean you'd rather see a more comprehensive fix?

The test still uses sleep() in one place.

Cheers,
Carlos.