Fix typo in comment.
diff --git a/Objects/classobject.c b/Objects/classobject.c
index 2c9c216..636d178 100644
--- a/Objects/classobject.c
+++ b/Objects/classobject.c
@@ -4,7 +4,7 @@
 #include "Python.h"
 #include "structmember.h"
 
-/* Free list for method objects to safe malloc/free overhead
+/* Free list for method objects to save malloc/free overhead
  * The im_self element is used to chain the elements.
  */
 static PyMethodObject *free_list;