Update phpdbg oplog test

Author: nikic

sapi/phpdbg/tests/phpdbg_oplog_001.phpt

@@ -26,7 +26,7 @@ prompt> halloarray(2) {
     [4]=>
     int(1)
     [5]=>
-    int(3)
+    int(2)
     [8]=>
     int(2)
   }