coroutine: fix memset() typo, add Licence and Copyright

[SVN r81767]

example/asio/stream_client.cpp

@@ -1,9 +1,3 @@
-
-//          Copyright Oliver Kowalke 2009.
-// Distributed under 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)
-
 #include <cstdlib>
 #include <iostream>
 #include <stdexcept>
@@ -35,7 +29,7 @@ int main( int argc, char* argv[])
                 desc),
             vm);
         boost::program_options::notify( vm);
-
+ 
         if ( vm.count("help") ) {
             std::cout << desc << std::endl;
             return EXIT_SUCCESS;