private Path getExternalTableFileListPath(String dumpPath) {
    if (dumpPath.endsWith("/_file_list_external")) {
      return new Path(dumpPath);
    } else if (dumpPath.endsWith("/hive")) {
      return new Path(dumpPath, "_file_list_external");
    } else {
      return new Path(dumpPath, "hive/_file_list_external");
    }
  }
Gets the path of the external table info file, allows the user to directly specify the path and tolerates if he
provides the dump path with /hive suffix or not to counter the difference between the dump path output in
metrics vs out of repl dump command which doesn't have /hive as suffix.
@param dumpPath
@return
ql/src/java/org/apache/hadoop/hive/ql/exec/repl/ReplicationMigrationTool.java