fix racist test
fix racist test

it's precisely not consistently going to be acquired, but it should eventually
be. but don't use eventually because it could immediately be true. so, sleep.
Signed-off-by: David Varvel <74ac15c6b081a71010ca83a75b36b72f2b2223d0@pivotallabs.com>

cloudfoundry-incubator/runtime-schema