Fixes findbugs warning - dereferencing null in exception case

Simon Harrer

2013-07-18 fbe265fa787e4be9cb63c6bae2ef30b9400d9afc

 src/main/java/com/gitblit/wicket/pages/BlobDiffPage.java

@@ -82,4 +82,9 @@
   protected String getPageName() {

      return getString("gb.diff");

   }

	
   @Override

   protected Class<? extends BasePage> getRepoNavPageClass() {

      return TreePage.class;

   }

}