Use the last log URL.

Change-Id: Ic5e6c1d72128dceff0b8789da9f4085a4fd0a260
Script to upload old logs to swift

Change-Id: I07ea7d0394bde0e2508d87b22ce64d2822f02649
Fix swift push

Change-Id: I86c814330b32aa9f27868d5b815f969f5545171f