Merge branch 'maint-1.7.6' into maint-1.7.7

* maint-1.7.6:
  attr: fix leak in free_attr_elem
  t2203: fix wrong commit command

attr.c

@@ -301,6 +301,7 @@ static void free_attr_elem(struct attr_stack *e)
 		}
 		free(a);
 	}
+	free(e->attrs);
 	free(e);
 }