ft_printf: Francinette doesn't test *

[poudink]

printf has a feature where instead of putting a number in the format string for the width and precision fields, you can put an asterisk (*) and pass the number as argument. moulinette checks for this feature in ft_printf and it is required to get the bonus points, but francinette doesn't. I used francinette extensively when doing this project a month ago and wasn't aware that the asterisk feature existed, so because of this my bonus did not pass moulinette, despite passing francinette and francinette --strict and I was very confused. francinette probably should have tests for this.