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cinhcet ee0bd49918 exec node returns 0 on the third output if command ended without error. (#1160)
* exec node returns 0 on the third output if command ended without error.
Otherwise, the status of the node is updated and the error code is send through the third output.

* info text updated and the second output returns only something if stderr is not empty

* proper stderror handling

* proper handling of stderr
2017-02-22 22:22:06 +00:00
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