nr_unresolved * sizeof(*objects));
                f = sha1fd(output_fd, curr_pack);
                fix_unresolved_deltas(f);
-               strbuf_addf(&msg, _("completed with %d local objects"),
+               strbuf_addf(&msg, Q_("completed with %d local object",
+                                    "completed with %d local objects",
+                                    nr_objects - nr_objects_initial),
                            nr_objects - nr_objects_initial);
                stop_progress_msg(&progress, msg.buf);
                strbuf_release(&msg);
                if (!(off & 0x80000000))
                        continue;
                off = off & 0x7fffffff;
+               check_pack_index_ptr(p, &idx2[off * 2]);
                if (idx2[off * 2])
                        continue;
                /*
        }
 }
 
+static const char *derive_filename(const char *pack_name, const char *suffix,
+                                  struct strbuf *buf)
+{
+       size_t len;
+       if (!strip_suffix(pack_name, ".pack", &len))
+               die(_("packfile name '%s' does not end with '.pack'"),
+                   pack_name);
+       strbuf_add(buf, pack_name, len);
+       strbuf_addstr(buf, suffix);
+       return buf->buf;
+}
+
 int cmd_index_pack(int argc, const char **argv, const char *prefix)
 {
        int i, fix_thin_pack = 0, verify = 0, stat_only = 0;
                usage(index_pack_usage);
        if (fix_thin_pack && !from_stdin)
                die(_("--fix-thin cannot be used without --stdin"));
-       if (!index_name && pack_name) {
-               size_t len;
-               if (!strip_suffix(pack_name, ".pack", &len))
-                       die(_("packfile name '%s' does not end with '.pack'"),
-                           pack_name);
-               strbuf_add(&index_name_buf, pack_name, len);
-               strbuf_addstr(&index_name_buf, ".idx");
-               index_name = index_name_buf.buf;
-       }
-       if (keep_msg && !keep_name && pack_name) {
-               size_t len;
-               if (!strip_suffix(pack_name, ".pack", &len))
-                       die(_("packfile name '%s' does not end with '.pack'"),
-                           pack_name);
-               strbuf_add(&keep_name_buf, pack_name, len);
-               strbuf_addstr(&keep_name_buf, ".idx");
-               keep_name = keep_name_buf.buf;
-       }
+       if (!index_name && pack_name)
+               index_name = derive_filename(pack_name, ".idx", &index_name_buf);
+       if (keep_msg && !keep_name && pack_name)
+               keep_name = derive_filename(pack_name, ".keep", &keep_name_buf);
+
        if (verify) {
                if (!index_name)
                        die(_("--verify with no packfile name given"));