code: @Deprecated
    public static String replaceShorthand(char c, Map<String, String> headers) {
      return replaceShorthand(c, headers, false, 0, 0);
    }
docs: Hardcoded lookups for %x style escape replacement. Add your own!
  
  All shorthands are Date format strings, currently.
  
  Returns the empty string if an escape is not recognized.
  
  Dates follow the same format as unix date, with a few exceptions.
  
  <p>This static method will be REMOVED in a future version of Flume</p>