Some style nits. Also clarify in the docstrings what __sizeof__ does.
diff --git a/Objects/longobject.c b/Objects/longobject.c
index 5876495..c9d138b 100644
--- a/Objects/longobject.c
+++ b/Objects/longobject.c
@@ -3467,7 +3467,7 @@
{"__getnewargs__", (PyCFunction)long_getnewargs, METH_NOARGS},
{"__format__", (PyCFunction)long__format__, METH_VARARGS},
{"__sizeof__", (PyCFunction)long_sizeof, METH_NOARGS,
- "Returns size in bytes"},
+ "Returns size in memory, in bytes"},
{NULL, NULL} /* sentinel */
};