msxml3: Make utf-8 the default encoding.

dlls/msxml3/domdoc.c

@@ -2603,6 +2603,9 @@ static char *xmldoc_encoding(IXMLDOMDocument3 *doc)
         IXMLDOMNode_Release(node);
     }
 
+    if (!encoding && (encoding = heap_alloc(sizeof("UTF-8"))))
+        strcpy(encoding, "UTF-8");
+
     return encoding;
 }
 

dlls/msxml3/tests/domdoc.c

@@ -6636,7 +6636,7 @@ static void test_save(void)
     {
        ReadFile(hfile, buffer, sizeof(buffer), &read, NULL);
        ok(read != 0, "could not read file\n");
-       todo_wine ok(!memcmp(buffer, cheA, sizeof(cheA)-1), "got: %s\n", buffer);
+       ok(!memcmp(buffer, cheA, sizeof(cheA)-1), "got: %s\n", buffer);
 
        CloseHandle(hfile);
        DeleteFileA("test.xml");