final protected function _formatLocation($file, $line, $format = self::LOG_FORMAT)
	{
		return sprintf($format, $file, $line);
	}
final protected function _formatLocation($file, $line, $format = self::LOG_FORMAT)
	{
		return sprintf($format, $file, $line);
	}
final protected function _formatLocation ( $ file , $ line , $ format = self :: LOG_FORMAT ) { return sprintf ( $ format , $ file , $ line ) ; }
formats the location from backtrace using sprintf

@param  string $file   the file the log was created in
@param  int    $line   the line the log was created on
@param  string $format output format

@return string         location formatted according to $format
formats the location from backtrace using sprintf