This is needed to pass the repo path to the credential helper, so we
can distinguish repos that need ReAuth.
Change-Id: I5aa72d6ec0421dcbff610f48f34129b8962050f7
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/tools/depot_tools/+/6822598
Reviewed-by: Gavin Mak <gavinmak@google.com>
Commit-Queue: Allen Li <ayatane@chromium.org>