Exit success on failure instead of exit failure

[xelalexv]

Exit success on failure instead of exit failure

[xelalexv]

Exit code is now set to 1 in case any problems occurred while handling the defined sync tasks. More precisely, if the most recent invocation of any task failed, dregsy reports 1 when exiting. For one-off tasks, there obviously is only one invocation. If that fails, exit code is 1. If for a recurring task, one or more failed invocations are followed by a successful one, then this is not considered an error. This will mask intermittent failures.

Note that dregsy does not stop when a task fails. So if there's at least one recurring task, dregsy will run indefinitely until interrupted. It will then report an exit code as outlined above.

[shoeper]

Great!