Relicense all public domain modules to CC0.
[ccan] / ccan / short_types /
drwxr-xr-x   ..
lrwxrwxrwx 18 LICENSE -> ../../licenses/CC0
-rw-r--r-- 2548 _info
-rw-r--r-- 695 short_types.h
drwxr-xr-x - test