dmv: when data completion script returns 1 it's not an error, issue a warning

SVN: 12081

datamover/source/java/ch/systemsx/cisd/datamover/utils/DataCompletedFilter.java

@@ -167,7 +167,7 @@ public class DataCompletedFilter implements IStoreItemFilter
                 conditionalNotificationLog.log(LogLevel.INFO, message);
             } else
             {
-                conditionalNotificationLog.log(LogLevel.ERROR, message);
+                conditionalNotificationLog.log(LogLevel.WARN, message);
             }
             result.log();
             lastProcessResult = result;