XDiff tests : manage the time second change

git-svn-id: https://svn.fournier38.fr/svn/ProgSVN/trunk@5163 bf3deb0d-5f1a-0410-827f-c0cc1f45334c

Tests/xdiffTest.php

@@ -180,8 +180,9 @@ to this document.
     // Mode unified
     $xdiff = new xdiff ("unified");
     $res = $xdiff->diff ($this->string1, $this->string2);
-    $this->assertSame ($res, "--- Original ".date ("Y-m-d H:i:s.u000 O")."
-+++ New ".date ("Y-m-d H:i:s.u001 O")."
+    $date = date ("Y-m-d H:i:s.u00");
+    $this->assertSame ($res, "--- Original ${date}0 +0100
++++ New ${date}1 +0100
 @@ -0,0 +1,6 @@
 +This is an important
 +notice! It should