Fix test/filestore/store_test.cc error

Commit
https://github.com/ceph/ceph/commit/d2b661d0efe79f5ec96e64647350cee0b80dc887
change the test result, just change it.

Signed-off-by: Haomai Wang <haomaiwang@gmail.com>
Fix qa/workunits/rados/test_cache_pool.sh typos

Signed-off-by: Haomai Wang <haomaiwang@gmail.com>
Merge pull request #1015 from yuyuyu101/wip-fix-tests

Fix some test codes problems

Reviewed-by: Sage Weil <sage@inktank.com>