Return a dict of CPAN configuration values

    CLI Example:

    .. code-block:: bash

        salt '*' cpan.show_config

def show_config():
    '''
    Return a dict of CPAN configuration values

    CLI Example:

    .. code-block:: bash

        salt '*' cpan.show_config
    '''
    ret = {}
    cmd = 'cpan -J'
    out = __salt__['cmd.run'](cmd).splitlines()
    for line in out:
        if '=>' not in line:
            # TODO: Some options take up multiple lines, so this doesn't always work
            continue
        comps = line.split('=>')
        key = comps[0].replace("'", '').strip()
        val = comps[1].replace("',", '').replace("'", '').strip()
        ret[key] = val
    return ret