opt: relicense to GPLv2+ (from GPLv3+)
[ccan] / ccan / opt / LICENSE
2014-02-24 Rusty Russellopt: relicense to GPLv2+ (from GPLv3+)
2010-11-10 Rusty Russellforeach, iscsi, jbitset, jmap, opt, rbtree, sparse_bsea...