Added extra ID string to make make release happy.

src/ZODB/IIBTree.c

-/* $Id: IIBTree.c,v 1.2 1997/09/24 19:21:06 brian Exp $ */
+/* $Id: IIBTree.c,v 1.3 1997/10/10 18:23:14 jim Exp $ */
 
 #define INTKEY int
 #define INTVAL int
+
+static char *needed_to_make_release_happy="$Id";
+
 #include "BTree.c"