def clean_board(shipDict):
    """Takes the given dictionary and replaces the 0 values with a single
    white space.  This is to show a clean looking board

    Args:
        shipDict (DICT): A dictionary representing the battleship board

    Returns:
        DICT: A dictionary where all the 0 values have been replaced with
        a single white space.
    """
    for key, value in shipDict.items():
        if value == '0':
            shipDict[key] = ' '
    return shipDict