- The extra comma at the end of the url string unintentionally turns
  the url into a list.
- The project name should be "pdfium".

Change-Id: I8944d59d06751716c512030145d29aac10cf13fd
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/tools/depot_tools/+/3770290Reviewed-by: Aravind Vasudevan <aravindvasudev@google.com>
Commit-Queue: Lei Zhang <thestig@chromium.org>