pdist: Add option --set-pdist-status #167
Merged
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Add option --set-pdist-status. This option make the client write a status
file /.pdist_status when everything completed successfully. It is
supposed to be used only during full dists from the distmaster.
The idea is that health check scripts can look at the status file and
the embededed time tag to find out when a system was successfully
updated generate an alarm if this is to long in the past.