Make markdown the only output option for the completion metrics tool

Change-Id: Id4c2020ea85453980f1ed044552b76f13316c7b1
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/189460
Reviewed-by: Konstantin Shcheglov <scheglov@google.com>
Commit-Queue: Brian Wilkerson <brianwilkerson@google.com>

https://dart.googlesource.com/sdk/+/8f2ca0b2482bf6acde1e90aab3745de407d4e51a
1 file changed
tree: 2e0cf47a276251fb3111916da0e73846a19a7ef5
  1. commits.json