*/
        struct ref_list *p = &header->prerequisites;
        struct rev_info revs;
-       const char *argv[] = {NULL, "--all"};
+       const char *argv[] = {NULL, "--all", NULL};
        struct object_array refs;
        struct commit *commit;
        int i, ret = 0, req_nr;
        int i, ref_count = 0;
        char buffer[1024];
        struct rev_info revs;
-       int read_from_stdin = 0;
        struct child_process rls;
        FILE *rls_fout;
 
        rls.git_cmd = 1;
        if (start_command(&rls))
                return -1;
-       rls_fout = fdopen(rls.out, "r");
+       rls_fout = xfdopen(rls.out, "r");
        while (fgets(buffer, sizeof(buffer), rls_fout)) {
                unsigned char sha1[20];
                if (buffer[0] == '-') {
        /* write references */
        argc = setup_revisions(argc, argv, &revs, NULL);
 
-       for (i = 1; i < argc; i++) {
-               if (!strcmp(argv[i], "--stdin")) {
-                       if (read_from_stdin++)
-                               die("--stdin given twice?");
-                       read_revisions_from_stdin(&revs);
-                       continue;
-               }
-               return error("unrecognized argument: %s'", argv[i]);
-       }
+       if (argc > 1)
+               return error("unrecognized argument: %s'", argv[1]);
+
+       object_array_remove_duplicates(&revs.pending);
 
        for (i = 0; i < revs.pending.nr; i++) {
                struct object_array_entry *e = revs.pending.objects + i;
 
        /* write pack */
        argv_pack[0] = "pack-objects";
-       argv_pack[1] = "--all-progress";
+       argv_pack[1] = "--all-progress-implied";
        argv_pack[2] = "--stdout";
        argv_pack[3] = "--thin";
        argv_pack[4] = NULL;