Sweeping !1172 from master to devel: [master] Return stdout/stderr in RunApplication._runApp (!1174) · Merge requests · LHCb Dirac / LHCbDIRAC

Currently this returns the stream handles which aren't what we want to display.

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*Core FIX: Return stdout/stderr in RunApplication._runApp

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Sweeping !1172 from master to devel: [master] Return stdout/stderr in RunApplication._runApp