make RoadmapWizard::getStateDisplayName do something vaguely useful

Change-Id: Ifcee6f52c13589e7f1907b4580c56ef340415dce
Reviewed-on: https://gerrit.libreoffice.org/c/core/+/200932
Tested-by: Jenkins
Reviewed-by: Noel Grandin <noel.grandin@collabora.co.uk>

vcl/source/control/roadmapwizard.cxx

@@ -976,10 +976,9 @@ namespace vcl
             skipBackwardUntil(static_cast<WizardTypes::WizardState>(nCurItemId));
     }
 
-    OUString RoadmapWizard::getStateDisplayName( WizardTypes::WizardState /* _nState */)
+    OUString RoadmapWizard::getStateDisplayName( WizardTypes::WizardState nState )
     {
-        SAL_WARN("vcl", "RoadmapWizard::getStateDisplayName: no name available for this state!");
-        return OUString();
+        return OUString::number(nState);
     }
 
     void RoadmapWizard::InsertRoadmapItem(int nItemIndex, const OUString& rText, int nItemId, bool bEnable)