Another brittle supervisor test.

Author: jdantonio

spec/concurrent/supervisor_spec.rb

@@ -440,6 +440,7 @@ def mock_thread(status = 'run')
         busy_supervisor.count.stopped.should eq total_count
         busy_supervisor.run!
         stoppers.each{|stopper| stopper.latch.wait(1) }
+        sleep(0.1)
 
         busy_supervisor.count.stopped.should eq stopped_count
       end