[rpt] Emit json output even if empty
Even if there are no builders to trigger, we should still emit JSON
output containing an empty list so that the recipe knows there are no
builders to trigger.
Change-Id: Iefdb7691cd9f7b5a3b422de093f456ed50483059
Reviewed-on: https://fuchsia-review.googlesource.com/c/infra/infra/+/893402
Reviewed-by: Catherine Duncan <catduncan@google.com>
Fuchsia-Auto-Submit: Oliver Newman <olivernewman@google.com>
Commit-Queue: Auto-Submit <auto-submit@fuchsia-infra.iam.gserviceaccount.com>
1 file changed