Fix unit testcase for restart test with multi kvstore
Fix unit testcase for restart test with multi kvstore

Signed-off-by: Sarath Lakshman <88fea7318180dc614b9a8286d9cfacb1e36761af@zynga.com>

zbase/ep-engine,zbase/ep-engine,zbase/ep-engine,zbase/ep-engine,zbase/ep-engine