fix bug in storm start/stop script
fix bug in storm start/stop script

wangyangjun/RealtimeStreamBenchmark,wangyangjun/StreamBench,wangyangjun/RealtimeStreamBenchmark,wangyangjun/RealtimeStreamBenchmark,wangyangjun/RealtimeStreamBenchmark,wangyangjun/StreamBench,wangyangjun/StreamBench,wangyangjun/StreamBench,wangyangjun/RealtimeStreamBenchmark,wangyangjun/RealtimeStreamBenchmark,wangyangjun/StreamBench,wangyangjun/StreamBench,wangyangjun/StreamBench,wangyangjun/StreamBench,wangyangjun/RealtimeStreamBenchmark,wangyangjun/RealtimeStreamBenchmark,wangyangjun/RealtimeStreamBenchmark,wangyangjun/StreamBench