if (!no_more_flags && argv[i][0] == '-') {
                        if (!strcmp(argv[i], "-t")) {
                                if (argc <= ++i)
-                                       die(hash_object_usage);
+                                       usage(hash_object_usage);
                                type = argv[i];
                        }
                        else if (!strcmp(argv[i], "-w")) {
                                hash_stdin(type, write_object);
                        }
                        else
-                               die(hash_object_usage);
-               } 
+                               usage(hash_object_usage);
+               }
                else {
                        const char *arg = argv[i];
                        if (0 <= prefix_length)