Delay for a random amount of time up to a limit.
If the value is less than 1 then the value of DefaultStaggerRangeSecs in the agent configuration file is used.
Useful for ensuring that multiple agents do not all execute following instructions at the same time, to prevent overloading a shared resource.
If the value is less than 1 then DefaultStaggerRangeSecs is used. This includes 0, therefore the mimimum delay is 1 second unless DefaultStaggerRangeSecs=0.