[automerger skipped] Avoid get same timestamps in log testcase
am: ac9e2af1b6 -s ours
am skip reason: change_id Ic8a0ab6f571df1487fe5fb4e5f07dc612af69001 with SHA1 998fca5795 is in history

Change-Id: Ia3d0a2f0e4403bd5a085c62139a9878ee7b475c8