Returns the format information of the third party library used to support the format. \n
* Format extra is 50 chars max. \n
* Returns an error code.
* See also \ref format.
*
* \verbatim im.FormatInfoExtra(format: string) -> error: number, extra: string [in Lua 5] \endverbatim
* \ingroup format
Returns the format information of the third party library used to support the format. \n * Format extra is 50 chars max. \n * Returns an error code. * See also \ref format. * * \verbatim im.FormatInfoExtra(format: string) -> error: number, extra: string [in Lua 5] \endverbatim * \ingroup format