Execute the given command and returns None.

    :param cmd: A ``sh.Command`` object to execute.
    :param debug: An optional bool to toggle debug output.
    :return: ``sh`` object

def run_command(cmd, debug=False):
    """
    Execute the given command and returns None.

    :param cmd: A ``sh.Command`` object to execute.
    :param debug: An optional bool to toggle debug output.
    :return: ``sh`` object
    """
    if debug:
        # WARN(retr0h): Uses an internal ``sh`` data structure to dig
        # the environment out of the ``sh.command`` object.
        print_environment_vars(cmd._partial_call_args.get('env', {}))
        print_debug('COMMAND', str(cmd))
        print()
    return cmd(_truncate_exc=False)