Return which packages own each of the services that are currently enabled.

    CLI Example:

        salt myminion introspect.enabled_service_owners

def enabled_service_owners():
    '''
    Return which packages own each of the services that are currently enabled.

    CLI Example:

        salt myminion introspect.enabled_service_owners
    '''
    error = {}
    if 'pkg.owner' not in __salt__:
        error['Unsupported Package Manager'] = (
            'The module for the package manager on this system does not '
            'support looking up which package(s) owns which file(s)'
        )

    if 'service.show' not in __salt__:
        error['Unsupported Service Manager'] = (
            'The module for the service manager on this system does not '
            'support showing descriptive service data'
        )

    if error:
        return {'Error': error}

    ret = {}
    services = __salt__['service.get_enabled']()

    for service in services:
        data = __salt__['service.show'](service)
        if 'ExecStart' not in data:
            continue
        start_cmd = data['ExecStart']['path']
        pkg = __salt__['pkg.owner'](start_cmd)
        ret[service] = next(six.itervalues(pkg))

    return ret