ccan: Correct some poor conventions in _info includes
[ccan] / ccan / hash /
drwxr-xr-x   ..
lrwxrwxrwx 18 LICENSE -> ../../licenses/CC0
-rw-r--r-- 875 _info
-rw-r--r-- 30306 hash.c
-rw-r--r-- 10220 hash.h
drwxr-xr-x - test