-allow benchmark to be run without connection close

src/examples/benchmark.c

@@ -122,9 +122,11 @@ main (int argc, char *const *argv)
   response = MHD_create_response_from_buffer (strlen (PAGE),
 					      (void *) PAGE,
 					      MHD_RESPMEM_PERSISTENT);
+#if 0
   (void) MHD_add_response_header (response,
 				  MHD_HTTP_HEADER_CONNECTION,
 				  "close");
+#endif
   d = MHD_start_daemon (MHD_USE_SELECT_INTERNALLY | MHD_SUPPRESS_DATE_NO_CLOCK
 #if EPOLL_SUPPORT
 			| MHD_USE_EPOLL_LINUX_ONLY | MHD_USE_EPOLL_TURBO