cleanup to pass inspection tool

[SVN r43135]

doc/style.css

@@ -1,3 +1,14 @@
+/*
+// Boost.Range library
+//
+//  Copyright Thorsten Ottosen 2003-2008. Use, modification and
+//  distribution is subject to the Boost Software License, Version
+//  1.0. (See accompanying file LICENSE_1_0.txt or copy at
+//  http://www.boost.org/LICENSE_1_0.txt)
+//
+// For more information, see http://www.boost.org/libs/range/
+//
+*/
 pre{
   BORDER-RIGHT: gray 1pt solid;
   PADDING-RIGHT: 2pt;