private void logIfVerbose(String msg) {
    if (schemaTool.isVerbose()) {
      System.out.println(msg);
    }
  }
Display "are you sure? y/n" on command line and return what the user has chosen
@return
standalone-metastore/metastore-server/src/main/java/org/apache/hadoop/hive/metastore/tools/schematool/SchemaToolTaskDrop.java