options_array_get
else if (options_array_get(o, array_key) != NULL)
ov = options_array_get(o, key);
union options_value *options_array_get(struct options_entry *, const char *);
if (options_array_get(o, s) != NULL)
ov = options_array_get(o, array_key);
default_ov = options_array_get(defaults, array_key);