def dictizeMeta(m):
    """
    Convert the plain metadata into a dictionary.

    Parameters
    ----------
    m : list
        A list of lines with colon-separated metadata.
    Returns
    -------
    meta : dict
        The dictionary-fied metadata.
    """
    meta = []
    for i in m:
        s = i.split(': ', 1)
        d = {s[0]: s[1]}
        meta.append(d)
    result = {}
    for d in meta:
        result.update(d)
    meta = result
    return meta
