Use tasks to configure automount nsswitch settings
    
    authselect doesn't allow one to directly write to
    /etc/nsswitch.conf. It will complain bitterly if it
    detects it and will refuse to work until reset.
    
    Instead it wants the user to write to
    /etc/authselect/user-nsswitch.conf and then it will handle
    merging in any differences.
    
    To complicate matters some databases are not user configurable
    like passwd, group and of course, automount. There are some
    undocumented options to allow one to override these though so
    we utilize that.
    
    tasks are used so that authselect-based installations can still
    write directly to /etc/nsswitch.conf and operate as it used to.
    
    Reviewed-By: Francois Cami <fcami@redhat.com>
    Reviewed-By: Rob Crittenden <rcritten@redhat.com>
    Reviewed-By: Rob Critenden <rcritten@redhat.com>
    Reviewed-By: François Cami <fcami@redhat.com>