json_out: make json_out_finished finish buffer.
[ccan] / ccan / container_of /
drwxr-xr-x   ..
lrwxrwxrwx 18 LICENSE -> ../../licenses/CC0
-rw-r--r-- 1386 _info
-rw-r--r-- 4278 container_of.h
drwxr-xr-x - test