Index: trunk/src/org/openstreetmap/josm/data/validation/tests/OpeningHourTest.java
===================================================================
--- trunk/src/org/openstreetmap/josm/data/validation/tests/OpeningHourTest.java	(revision 10977)
+++ trunk/src/org/openstreetmap/josm/data/validation/tests/OpeningHourTest.java	(revision 10978)
@@ -67,4 +67,5 @@
                         "  } catch (err) {" +
                         "    return {" +
+                        "      prettifyValue: function() {return null;}," +
                         "      getWarnings: function() {return [];}," +
                         "      getErrors: function() {return [err.toString()]}" +