alive (GNU Alive) 2.0.5
Copyright (C) 2012, 2022 Thien-Thi Nguyen
License GPLv3+: GNU GPL version 3 or later <https://gnu.org/licenses/gpl.html>
This is free software: you are free to change and redistribute it.
There is NO WARRANTY, to the extent permitted by law.
Also, under doc/:
Permission is granted to copy, distribute and/or modify this
document under the terms of the GNU Free Documentation License,
Version 1.3 or any later version published by the Free Software
Foundation; with no Invariant Sections, with no Front-Cover Texts,
and with no Back-Cover Texts. A copy of the license is included in
the appendix entitled “GNU Free Documentation License”.
But I guess that you do indeed see the documentation license on info alive (plus I don't see any copies of any GFDL under licenses).
Finally, according to the alive news, xdgdirs is optional, while the ebuild has it as a harddep.