Trim trailing spaces.

include/boost/iterator/is_lvalue_iterator.hpp

@@ -22,7 +22,7 @@ namespace detail
   // and the result is computed in the nested rebind template.
   template <class Value>
   struct is_lvalue_iterator_impl
-  {      
+  {
       template <class It>
       using DerefT = decltype(*std::declval<It&>());
 

include/boost/iterator/is_readable_iterator.hpp

@@ -24,7 +24,7 @@ namespace detail
       struct rebind : std::is_convertible<
                         decltype(*std::declval<It&>())
                       , typename std::add_lvalue_reference<Value>::type
-                      > 
+                      >
       {};
   };