When decompressing an archive, there is a risk of messing up the current folder, if the archive is huge it will mix your folder with a lot of files and you'll have a hard time trying to clean it up afterwards.

To solve this, Ouch has a hidden feature called "smart unpack", when it detects that an archive has more than one file, it creates a new folder and unpacks all the contents inside of that folder, so cleaning up is as simple as deleting that folder.

However, if the user specified a target directory with --dir, we could (?) assume they intentionally want to decompress it into that folder directly, so "smart unpack" can be disabled, it will just create an unwanted nested folder.