Fix tabs in file.

[SVN r21399]

shared_iterator_example2.cpp

@@ -33,7 +33,7 @@ int main() {
     ints->push_back(5);
 
     print_range_nl(boost::make_shared_container_iterator(ints->begin(),ints),
-		   boost::make_shared_container_iterator(ints->end(),ints));
+                   boost::make_shared_container_iterator(ints->end(),ints));
   }