this:
const char *path = "path/to/submodule"
- if (!add_submodule_odb(path))
+ if (add_submodule_odb(path))
die("Error submodule '%s' not populated.", path);
-`add_submodule_odb()` will return an non-zero value on success. If you
+`add_submodule_odb()` will return zero on success. If you
do not do this you will get an error for each ref that it does not point
to a valid object.