If you try to emerge nwn-data with USE="cdinstall" but you haven't inserted your CD the ebuild will loop forever. The problem is that on line 136 we have: read -n But the shell complains that read -n requires an argument. The fix is quite simple: read -n 1
Yeah, newer bash decided to change the way that worked on us... it'll be fixed as soon as we get a chance.
Well, this is FIXED now. Please be sure to mention what version of the package you're filing a bug report on in the future. Thanks!