newlines to fix hpux bustage r=jdunn

layout/xul/base/src/nsXULTreeCellFrame.cpp

@@ -101,4 +101,5 @@ nsXULTreeCellFrame::GetFrameForPoint(nsIPresContext* aPresContext,
     }
     return NS_ERROR_FAILURE;
   }
-}
+}
+

layout/xul/base/src/nsXULTreeOuterGroupFrame.cpp

@@ -788,4 +788,5 @@ nsXULTreeOuterGroupFrame::IndexOfItem(nsIContent* aRoot, nsIContent* aContent,
 
   // not found
   return NS_ERROR_FAILURE;
-}
+}
+