fix tests

ext/zip/tests/bug11216.phpt

@@ -15,14 +15,14 @@ var_dump($archive->addEmptyDir('test'));
 $archive->close();
 unlink('__test.zip');
 ?>
---EXPECT--
+--EXPECTF--
 bool(true)
 ZipArchive Object
 (
     [status] => 0
     [statusSys] => 0
     [numFiles] => 1
-    [filename] => 
+    [filename] => %s
     [comment] => 
 )
 bool(false)

ext/zip/tests/bug38944.phpt

@@ -23,7 +23,7 @@ echo "Done\n";
 int(0)
 int(0)
 int(0)
-string(0) ""
+string(%d) "%s"
 string(0) ""
 object(ZipArchive)#%d (5) {
   ["status"]=>
@@ -33,7 +33,7 @@ object(ZipArchive)#%d (5) {
   ["numFiles"]=>
   int(0)
   ["filename"]=>
-  string(0) ""
+  string(%d) "%s"
   ["comment"]=>
   string(0) ""
 }

ext/zip/tests/oo_properties.phpt

@@ -51,8 +51,8 @@ zip->status (0):
 zip->numFiles (5):
 	empty(): 0
 	isset(): 1
-zip->filename (0):
-	empty(): 1
+zip->filename (%d):
+	empty(): 0
 	isset(): 1
 zip->comment (19):
 	empty(): 0