gvpr cloneO: squash a -Wswitch-default warning

This switch is exhaustive.

diff --git a/lib/gvpr/actions.c b/lib/gvpr/actions.c
index ad44a084fb2e49ccaf70aad9a12074e7dddc0a52..1c0b8fd0492f58341b527c835a56cab96552d05f 100644 (file)
--- a/lib/gvpr/actions.c
+++ b/lib/gvpr/actions.c
@@ -413,6 +413,8 @@ Agobj_t *cloneO(Agraph_t * g, Agobj_t * obj)
        if (nobj)
            copyAttr(obj, nobj);
        break;
+    default:
+       UNREACHABLE();
     }
 
     return nobj;