code: public StrBuilder appendFixedWidthPadLeft(final int value, final int width, final char padChar) {
          return appendFixedWidthPadLeft(String.valueOf(value), width, padChar);
      }
docs: Appends an object to the builder padding on the left to a fixed width.
  The <code>String.valueOf</code> of the <code>int</code> value is used.
  If the formatted value is larger than the length, the left hand side is lost.
  
  @param value  the value to append
  @param width  the fixed field width, zero or negative has no effect
  @param padChar  the pad character to use
  @return this, to enable chaining