Remove trailing whitespace.

Signed-off-by: Edward Z. Yang <edwardzyang@thewritingpot.com>

tests/HTMLPurifier/AttrDef/TextTest.php

@@ -2,15 +2,15 @@
 
 class HTMLPurifier_AttrDef_TextTest extends HTMLPurifier_AttrDefHarness
 {
-    
+
     function test() {
-        
+
         $this->def = new HTMLPurifier_AttrDef_Text();
-        
+
         $this->assertDef('This is spiffy text!');
         $this->assertDef(" Casual\tCDATA parse\ncheck. ", 'Casual CDATA parse check.');
-        
+
     }
-    
+
 }