Fix changelogs formatting
HttT scenario 4: Use find_vacant=yes to unstore Delfador at the end

Fixes the somewhat unlikely situation of him clobbering whichever unit
happens to be standing on 31,11 and causing it to disappear from the
game forever (especially bad if it's a player unit).

This commit is dedicated to my loyal Knight Haldiel, who became victim
to this oversight.