path processiong wrong

Created by: JoKalliauer

Processiong File:Envelope_string_art.svg with

$ scour Envelope_string_art.svg output.svg

connects a corner to the origin, instead of closing the rectangle: input.svg.txt

<?xml version="1.0" encoding="UTF-8"?>
<svg width="600" height="480" xmlns="http://www.w3.org/2000/svg">
 <path d="m108.5 408h441.3m-441.3 0v-371.9m0 0v371.9h441.3v-371.9z" fill="none" stroke="#000"/>
</svg>

The output is: output.svg.txt

<?xml version="1.0" encoding="UTF-8"?>
<svg width="600" height="480" xmlns="http://www.w3.org/2000/svg">
 <path d="m108.5 408h441.3m-441.3 0v-371.9 371.9h441.3v-371.9z" fill="none" stroke="#000"/>
</svg>

so d="m108.5 408h441.3m-441.3 0v-371.9m0 0v371.9h441.3v-371.9z" is changed to: d="m108.5 408h441.3m-441.3 0v-371.9 371.9h441.3v-371.9z"