Fix test_default_doctype_handler() to work in UTF-16 builds
diff --git a/expat/tests/runtests.c b/expat/tests/runtests.c
index 20ff275..b4ec6bc 100644
--- a/expat/tests/runtests.c
+++ b/expat/tests/runtests.c
@@ -7040,12 +7040,12 @@
         "<doc>&foo;</doc>";
     DefaultCheck test_data[] = {
         {
-            "'pubname'",
+            XCS("'pubname'"),
             9,
             XML_FALSE
         },
         {
-            "'test.dtd'",
+            XCS("'test.dtd'"),
             10,
             XML_FALSE
         },