Trim trailing spaces.

example/shared_iterator_example3.cpp

@@ -1,6 +1,6 @@
 // Copyright 2003 The Trustees of Indiana University.
 
-// Use, modification and distribution is subject to the Boost Software 
+// 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)
 
@@ -8,7 +8,7 @@
 #include "boost/shared_ptr.hpp"
 #include "boost/tuple/tuple.hpp" // for boost::tie
 #include <algorithm>              // for std::copy
-#include <iostream>              
+#include <iostream>
 #include <vector>
 
 
@@ -31,7 +31,7 @@ int main() {
 
 
   iterator i,end;
-  
+
   boost::tie(i,end) = return_range();
 
   std::copy(i,end,std::ostream_iterator<int>(std::cout,","));