message: fix cluster deletion command
diff: @@ -72,8 +72,8 @@ jobs:
  echo \$? > testresult"
  - run:
  name: Delete devnet cluster
  - command: gcloud container clusters --region us-central1-b delete \
  - $(cat clustername | tr -d '\n\r')
  + command: |
  + gcloud container clusters delete $(cat clustername | tr -d '\n\r') --region us-central1-b
  - run:
  name: Check test result
  command: bash -c "if(( $(<testresult)==0 )); then exit 0 ; else exit 1 ; fi"
  