code: public static void append(Path self, Object text, String charset) throws IOException {
          append(self, text, charset, false);
      }
docs: Append the text at the end of the Path without writing a BOM, using a specified
  encoding.
  
  @param self    a Path
  @param text    the text to append at the end of the Path
  @param charset the charset used
  @throws java.io.IOException if an IOException occurs.
  @since 2.3.0