Try to fix race condition in watcher test
Try to fix race condition in watcher test

The listen watcher version of this test seems to hiccup from time to
time, perhaps this will help.

slobodankovacevic/spring,smathy/spring,universsky/spring-1,maclover7/spring,y-yagi/spring,ypresto/spring,grosser/spring,rails/spring,mariusbutuc/spring