[resultdb] Correct artifact and run count mismatch message.
[resultdb] Correct artifact and run count mismatch message.

Also, display the actual run statuses. Not every run necessarily
generates output: for example, timed out runs might not generate
output. Include the actual run statuses to help determine if the
mismatch is actually fine.

Change-Id: I044f837cc16198418015db748d464b48643c0cd2
Reviewed-on: https://chromium-review.googlesource.com/c/infra/luci/luci-go/+/1958702
Commit-Queue: Jao-ke Chin-Lee <5de1a387cc854ff3d04fab3d66d4e77a58511771@chromium.org>
Reviewed-by: Nodir Turakulov <ef4933a197ef7b4b3f55f1bec4942aead3637a2a@chromium.org>

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