tests: Adjust reverse-bag graph test to recent OCaml changes.

This is a followup to 87858bc526a9d577760f55d05a51cb56630f845b.

Partly fixes <https://bugs.gnu.org/39374>.
Reported by Ellen Papsch <ellen.papsch@wine-logistix.de>.

* tests/graph.scm ("reverse bag DAG"): Adjust test to latest OCaml
changes.

1 files changed, 2 insertions, 2 deletions

diff --git a/tests/graph.scm b/tests/graph.scm
index b7732ec7099..402847102fd 100644
--- a/tests/graph.scm
+++ b/tests/graph.scm
@@ -1,5 +1,5 @@
 ;;; GNU Guix --- Functional package management for GNU
-;;; Copyright © 2015, 2016, 2017, 2018, 2019 Ludovic Courtès <ludo@gnu.org>
+;;; Copyright © 2015, 2016, 2017, 2018, 2019, 2020 Ludovic Courtès <ludo@gnu.org>
 ;;;
 ;;; This file is part of GNU Guix.
 ;;;
@@ -195,7 +195,7 @@ edges."
   (let-values (((dune bap ocaml-base)
                 (values (specification->package "dune")
                         (specification->package "bap")
-                        (specification->package "ocaml-base")))
+                        (specification->package "ocaml4.07-base")))
                ((backend nodes+edges) (make-recording-backend)))
     (run-with-store %store
       (export-graph (list dune) 'port