Generate fabric-style output if and only if status output
    has been selected.

def _puts(message, level, **kwargs):
    """
    Generate fabric-style output if and only if status output
    has been selected.
    """
    if not output.get(level):
        return
    print "[{hostname}] {message}".format(hostname=env.host_string,
                                          message=message.format(**kwargs))