[hardware] remove obsolete up2date_client hardware calls

Remove the calls to up2date_client's Hardware module and simplify
the plugin so we support Red Hat, Debian and Ubuntu from a single
module.

Signed-off-by: Bryn M. Reeves <bmr@redhat.com>
[cluster] collect gfs2 withdraw file

Collect /sys/fs/gfs2/*/withdraw.

Signed-off-by: Bryn M. Reeves <bmr@redhat.com>
[sar] minor style fixes

Signed-off-by: Bryn M. Reeves <bmr@redhat.com>
[ipa] add ipa-replica-manage output

Signed-off-by: Bryn M. Reeves <bmr@redhat.com>
[distupgrade] elide passwords in /root/preupgrade

Signed-off-by: Bryn M. Reeves <bmr@redhat.com>
[anaconda] elide passwords in kickstart user directives

E.g.:

useradd --password '$6$oIW3o2Mr$XbWZKaM7nA.cQqudfDJScupXOia5h1u517t6Htx/Q/MgXm82Pc/OcytatTeI4ULNWOMJzvpCigWiL4xKP9PX4.' test

Signed-off-by: Bryn M. Reeves <bmr@redhat.com>