DevTools: update LASTCHANGE for uploader_iteration.sh

Make LASTCHANGE consistent with how it's normally generated.

Based on this CL comment:
https://codereview.chromium.org/1982423002/#msg24

BUG=none
R=dgozman@chromium.org

Review-Url: https://codereview.chromium.org/2829683005 .
1 file changed
tree: 79f16f22a18bf017c3f58563818148fe1451a145
  1. gae/
  2. gce/
  3. .gitignore
  4. codereview.settings
  5. OWNERS
  6. WATCHLISTS