Remove trailing whitespace.

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

tests/HTMLPurifier/Injector/PurifierLinkifyTest.php

@@ -2,57 +2,57 @@
 
 class HTMLPurifier_Injector_PurifierLinkifyTest extends HTMLPurifier_InjectorHarness
 {
-    
+
     function setup() {
         parent::setup();
         $this->config->set('AutoFormat', 'PurifierLinkify', true);
         $this->config->set('AutoFormatParam', 'PurifierLinkifyDocURL', '#%s');
     }
-    
+
     function testNoTriggerCharacer() {
         $this->assertResult('Foobar');
     }
-    
+
     function testTriggerCharacterInIrrelevantContext() {
         $this->assertResult('20% off!');
     }
-    
+
     function testPreserveNamespace() {
         $this->assertResult('%Core namespace (not recognized)');
     }
-    
+
     function testLinkifyBasic() {
         $this->assertResult(
           '%Namespace.Directive',
           '<a href="#Namespace.Directive">%Namespace.Directive</a>'
         );
     }
-    
+
     function testLinkifyWithAdjacentTextNodes() {
         $this->assertResult(
           'This %Namespace.Directive thing',
           'This <a href="#Namespace.Directive">%Namespace.Directive</a> thing'
         );
     }
-    
+
     function testLinkifyInBlock() {
         $this->assertResult(
           '<div>This %Namespace.Directive thing</div>',
           '<div>This <a href="#Namespace.Directive">%Namespace.Directive</a> thing</div>'
         );
     }
-    
+
     function testPreserveInATag() {
         $this->assertResult(
           '<a>%Namespace.Directive</a>'
         );
     }
-    
+
     function testNeeded() {
         $this->config->set('HTML', 'Allowed', 'b');
         $this->expectError('Cannot enable PurifierLinkify injector because a is not allowed');
         $this->assertResult('%Namespace.Directive');
     }
-    
+
 }