If the URL ends in a slash, this would fail to match the gitcookies file
Change-Id: I987ec637b2f6db172d4173938960060321722bfe
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/87920
Auto-Submit: Ben Clayton <bclayton@google.com>
Kokoro: Kokoro <noreply+kokoro@google.com>
Reviewed-by: Antonio Maiorano <amaiorano@google.com>
Commit-Queue: Antonio Maiorano <amaiorano@google.com>