Fix bustage of Bug 553540. typo fix

content/base/public/nsIDocumentEncoder.idl

@@ -215,6 +215,7 @@ interface nsIDocumentEncoder : nsISupports
    */
   const unsigned long OutputDontRewriteEncodingDeclaration = (1 << 18);
  
+  /**
    * When using the HTML or XHTML serializer, skip elements that are not
    * visible when this flag is set.  Elements are not visible when they
    * have CSS style display:none or visibility:collapse, for example.
@@ -228,7 +229,6 @@ interface nsIDocumentEncoder : nsISupports
    */
   const unsigned long OutputFormatDelSp  = (1 << 20);
  
-  /**
   /**
    * Initialize with a pointer to the document and the mime type.
    * @param aDocument Document to encode.