fix skip

tests/merge_cell_type_writer.phpt

@@ -1,7 +1,10 @@
 --TEST--
 Check for vtiful presence
 --SKIPIF--
-<?php if (!extension_loaded("xlswriter")) print "skip"; ?>
+<?php
+require __DIR__ . '/include/skipif.inc';
+skip_disable_reader();
+?>
 --FILE--
 <?php
 $config = ['path' => './tests'];
@@ -40,4 +43,4 @@ array(3) {
     [0]=>
     float(3.001)
   }
-}
+}