sanitize-commit regards a doc-paragraph reflow as a non-WS change

I made indentation of the QCalendar documentation consistent. In the process I reflowed the text, since the increased indent took some lines over the 80-column limit.
The commit-hook duly complained about mixing spacing changes with non-spacing changes, because some words moved from one line to the next while lines elsewhere only gained spaces.
A reflow is a space-only change, so this complaint is entirely misguided.