public QOutProcessor getQOutProcessor() {
    return qOutProcessor;
  }
Given the current configurations (e.g., hadoop version and execution mode), return
the correct file name to compare with the current test run output.

@param outDir   The directory where the reference log files are stored.
@param testName The test file name (terminated by ".out").
@return The file name appended with the configuration values if it exists.
itests/util/src/main/java/org/apache/hadoop/hive/ql/QTestUtil.java