Check for None instead of empty string in pulsar job finish

            run_results = client.full_status()

            remote_metadata_directory = run_results.get("metadata_directory", None)

            stdout = run_results.get("stdout", "")

            if stdout == "":

            if stdout is None:

                stdout_path = Path(job_wrapper.working_directory) / "outputs" / "tool_stdout"

                stdout_file = open(stdout_path, "r")

                stdout = stdout_file.read()