message: test: adding debug hints for integration test config failures
  Risk Level: n/a (test only)
  Testing: manual
  Docs Changes: n/a
  Release Notes: n/a
diff: @@ -442,7 +442,8 @@ void BaseIntegrationTest::createGeneratedApiTestServer(const std::string& bootst
  if (!allow_lds_rejection) {
  RELEASE_ASSERT(test_server_->counter(rejected) == nullptr ||
  test_server_->counter(rejected)->value() == 0,
  - "Lds update failed");
  + "Lds update failed. For details, run test with -l trace and look for "
  + "\"Error adding/updating listener(s)\" in the logs.");
  }
  time_system_.sleep(std::chrono::milliseconds(10));
  }
  