"no-maint" is a bit similar to "up" except that it will only hide
servers that are in maintenance (or disabled in the configuration), and
not those that are enabled but failed a check. One benefit here is to
significantly reduce the output of the "show stat" command when using
large server-templates containing entries that are not yet provisioned.
Note that the prometheus exporter also has such an option which does
the exact same.
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