- ==> Left justify the result  within the given field width.   Default:
        Right justify.

    + ==> Prefix the output value with a sign (+ or -) if the output  value
        is of  a signed  type.   Default:   Sign appears  only for negative
        signed values (-).

    blank ('  ') ==>  Prefix the  output value  with a  blank if the output
        value is signed  and positive.   The blank is  ignored if both  the
        blank and + flags appear.  Default:  No blank.

    # ==> When  used with the  o, x, or  X format, the  # flag prefixes any
        nonzero output value with 0, 0x, or 0X, respectively.  Default:  No
        blank.

    # ==>  When used  with the  e, E,  or f  format, the  # flag forces the
        output value  to contain  a decimal  point in  all cases.  Default:
        Decimal point appears only if digits follow it.

    # ==> When used with  the g or G format,  the # flag forces the  output
        value to  contain a  decimal point  in all  cases and  prevents the
        truncation of trailing zeros.  Default:  Decimal point appears only
        if digits follow it.  Trailing zeros are truncated.

    # ==> Ignored when used with c, d, i, u or s

    0 ==> For  d, i, o,  u, x, X,  e, E, f,  g, and G  conversions, leading
        zeros (following any indication of sign or base) are used to pad to
        the field width;  no space padding  is performed.   If the 0  and -
        flags both appear, the 0 flag will be ignored.  For d, i, o, u,  x,
        and X conversions, if a precision is specified, the 0 flag will  be
        ignored.    For  other  conversions  the  behavior  is   undefined.
        Default:  Use blank padding