Use lazy_import_path, not _name, when discarding from sys.lazy_modules

Only the root is now resolved.

Author: encukou

Objects/lazyimportobject.c

@@ -528,7 +528,7 @@ lazy_import_resolve_impl(PyThreadState *tstate, PyObject *lazy_import,
     }
     assert(obj == NULL || !PyLazyImport_CheckExact(obj));
     if (obj != NULL) {
-        PyObject *name = lazy_import_name(lz);
+        PyObject *name = lazy_import_path(lz);
         if (name == NULL ||
             _PyImport_DiscardLazyModule(tstate->interp, name) < 0) {
             Py_CLEAR(obj);