message: [CI] add missing comment in e2e test retry
  Add the missing comment in the e2e test retry logic.  Also add 10 sec
  between retries.
  Closes:
  Approved by: rexhoffman
diff: @@ -273,8 +273,10 @@ jobs:
  echo -e "This runner will run these tests\n$(cat /tmp/tests_to_run)"
  - run:
  name: Run E2E tests
  + # NOTE
  + # +e to disable exit immediately when test timeout in the retry loop
  command: |
  - set -x +e
  + set +e
  libratest=$(find target/debug/deps/ -name "libratest*" -executable)
  num_fails=0
  for target in $(cat /tmp/tests_to_run) ; do
  @@ -286,6 +288,7 @@ jobs:
  $libratest $target --test-threads 1 --exact --nocapture
  status=$?
  retry=$((retry + 1))
  + sleep 10
  done
  if [[ $status != 0 ]] ; then
  num_fails=$((num_fails + 1))
  