Use the ocaml tag 0 since we are just returning an option value.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97612 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/bindings/ocaml/executionengine/executionengine_ocaml.c b/bindings/ocaml/executionengine/executionengine_ocaml.c
index d12a9f7..1d3e57a 100644
--- a/bindings/ocaml/executionengine/executionengine_ocaml.c
+++ b/bindings/ocaml/executionengine/executionengine_ocaml.c
@@ -226,7 +226,7 @@
   LLVMValueRef Found;
   if (LLVMFindFunction(EE, String_val(Name), &Found))
     CAMLreturn(Val_unit);
-  Option = alloc(1, 1);
+  Option = alloc(1, 0);
   Field(Option, 0) = Val_op(Found);
   CAMLreturn(Option);
 }