1 files changed, 24 insertions, 21 deletions
diff --git a/3rdparty/Sabre/VObject/Parameter.php b/3rdparty/Sabre/VObject/Parameter.php
index 9ebab6ec69b..2e39af5f78a 100644..100755
--- a/3rdparty/Sabre/VObject/Parameter.php
+++ b/3rdparty/Sabre/VObject/Parameter.php
@@ -5,51 +5,54 @@
  *
  * This class represents a parameter. A parameter is always tied to a property.
  * In the case of:
- *   DTSTART;VALUE=DATE:20101108 
+ *   DTSTART;VALUE=DATE:20101108
  * VALUE=DATE would be the parameter name and value.
- * 
+ *
  * @package Sabre
  * @subpackage VObject
- * @copyright Copyright (C) 2007-2011 Rooftop Solutions. All rights reserved.
- * @author Evert Pot (http://www.rooftopsolutions.nl/) 
+ * @copyright Copyright (C) 2007-2012 Rooftop Solutions. All rights reserved.
+ * @author Evert Pot (http://www.rooftopsolutions.nl/)
  * @license http://code.google.com/p/sabredav/wiki/License Modified BSD License
  */
 class Sabre_VObject_Parameter extends Sabre_VObject_Node {
 
     /**
-     * Parameter name 
-     * 
-     * @var string 
+     * Parameter name
+     *
+     * @var string
      */
     public $name;
 
     /**
-     * Parameter value 
-     * 
-     * @var string 
+     * Parameter value
+     *
+     * @var string
      */
     public $value;
 
     /**
-     * Sets up the object 
-     * 
-     * @param string $name 
-     * @param string $value 
+     * Sets up the object
+     *
+     * @param string $name
+     * @param string $value
      */
     public function __construct($name, $value = null) {
 
         $this->name = strtoupper($name);
         $this->value = $value;
 
-    } 
+    }
 
     /**
-     * Turns the object back into a serialized blob. 
-     * 
-     * @return string 
+     * Turns the object back into a serialized blob.
+     *
+     * @return string
      */
     public function serialize() {
 
+        if (is_null($this->value)) {
+            return $this->name;
+        }
         $src = array(
             '\\',
             "\n",
@@ -68,9 +71,9 @@ class Sabre_VObject_Parameter extends Sabre_VObject_Node {
     }
 
     /**
-     * Called when this object is being cast to a string 
-     * 
-     * @return string 
+     * Called when this object is being cast to a string
+     *
+     * @return string
      */
     public function __toString() {