I was able to make a useful change to this question, but then when I saw a need to correct a sign, I could not do it because it wasn't enough characters.
Now I have a wholesale change back in the review queue, which I don't want.
It has now been fixed by the author of the post.
In the future, note that you could have made some (admittedly minor) grammar and formatting corrections; see my revision. This would've put you over the 6 character limit.
Another option would've been to leave a comment informing the author of the mistake, so that they can correct it themselves.