Bugfix execRule: stdout was set instead of stderr in if-case.

utils/irodsConnector.py

@@ -742,7 +742,7 @@ class irodsConnector():
                     stderr = [o.decode() 
                         for o in (out.MsParam_PI[0].inOutStruct.stderrBuf.buf.strip(b'\x00')).split(b'\n')]
                 else:
-                    stdout = ""
+                    stderr = ""
             except AttributeError:
                 logging.info('RULE EXECUTION ERROR: '+str(stdout+stderr), exc_info=True)
                 return "", ""