Actually, I'm using this one in Windows. And considering the Dom2 crowd I won't be surprised if the most of the players already use their own scripts to backup turn files
If developers are to implement something about that I think enumerating turns would have more uses (and probably easier to program). For example:
Code:
jotun.1.trn
jotun.1.2h
jotun.2.trn
jotun.2.2h
...