ntome authored Mar 06, 2018 and Romain Bignon committed Mar 31, 2018

Sometimes lines might produce overlapping rects like:

* (0, 10, 1, 11)
* (0, 10, 2, 11)
* (1, 10, 2, 11)

Try to remove some of the rects if they have the same x0, it's ugly and
done ugly because I'm too lazy at the moment and those PDFs suck.