Fix typo in swarming retry logic
Fix typo in swarming retry logic

TBR=d2bf0fc09b08f7b0888b3ddab32b3e89c7122c8b@chromium.org

Bug: 892008
Change-Id: I5d48e27abd7635e98762b439103be3f8cdd1da20
Reviewed-on: https://chromium-review.googlesource.com/c/1280964
Commit-Queue: Nodir Turakulov <ef4933a197ef7b4b3f55f1bec4942aead3637a2a@chromium.org>
Commit-Queue: Marc-Antoine Ruel <d2bf0fc09b08f7b0888b3ddab32b3e89c7122c8b@chromium.org>
Reviewed-by: Nodir Turakulov <ef4933a197ef7b4b3f55f1bec4942aead3637a2a@chromium.org>
Reviewed-by: Marc-Antoine Ruel <d2bf0fc09b08f7b0888b3ddab32b3e89c7122c8b@chromium.org>

luci/luci-go,luci/luci-go,luci/luci-go,luci/luci-go,luci/luci-go,luci/luci-go