shortlog: warn the user when there is no input

diff --git a/object.h b/object.h
index d962ff11d1b2f810e21b049c7dbfed104cc199cb..82877c831ca7fe39abbb98805f5801bdc6fcac9c 100644 (file)
--- a/object.h
+++ b/object.h
@@ -72,15 +72,11 @@ struct object *lookup_unknown_object(const unsigned  char *sha1);
 struct object_list *object_list_insert(struct object *item,
                                       struct object_list **list_p);
 
-void object_list_append(struct object *item,
-                       struct object_list **list_p);
-
-unsigned object_list_length(struct object_list *list);
-
 int object_list_contains(struct object_list *list, struct object *obj);
 
 /* Object array handling .. */
 void add_object_array(struct object *obj, const char *name, struct object_array *array);
 void add_object_array_with_mode(struct object *obj, const char *name, struct object_array *array, unsigned mode);
+void object_array_remove_duplicates(struct object_array *);
 
 #endif /* OBJECT_H */