[Kylin-Assistant]Start cleanup on the Home and then the Cleanup. Failed to cleanup on the Cleanup.

[kyt]

[Machine]
Dell Vostro 3900
  [Version]
1804 final 20180427.3 enhanced
  [Details]
[Kylin-Assistant]Start cleanup on the Home and then the Cleanup. Failed to cleanup on the Cleanup.
【麒麟助手】先点击首页的开始扫描，再点击系统清理，先清理首页的垃圾，再清理系统垃圾时，就一直卡在：“正在清理：b'/home/kylin/.bash_history”
  [Test Case]
1. Open Kylin-Assistant
2. Start scan on the Home and then the Cleanup
3. Start cleanup on the Home and then the Cleanup
Expected Result: Passed
Actual Result:
Failed to cleanup on the Cleanup.