utf8: don't allow NUL in decoded strings.
[ccan] / ccan / compiler /
drwxr-xr-x   ..
lrwxrwxrwx 18 LICENSE -> ../../licenses/CC0
-rw-r--r-- 1542 _info
-rw-r--r-- 7737 compiler.h
drwxr-xr-x - test