Description:
If you don't supply a file of hostnames, then it will read from stdin.
This will add all the remstats distributed rrds collected by the
unix-status-collector, except for those using the PS
section
of the collector.
It's up to you to discard any you don't want.
If there is no existing host file for a given host, it will create one
with default header info. If there is one, it will just append the
new rrds.
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