fixed bug in udp tracker scrape response parsing

ChangeLog

@@ -28,6 +28,7 @@
 	  incoming connection
 	* added more detailed instrumentation of the disk I/O thread
 
+	* fixed bug in udp tracker scrape response parsing
 	* fixed bug in the disk thread that could get triggered under heavy load
 	* fixed bug in add_piece() that would trigger asserts
 	* fixed vs 2010 build

src/udp_tracker_connection.cpp

@@ -491,8 +491,6 @@ namespace libtorrent
 
 	void udp_tracker_connection::on_scrape_response(char const* buf, int size)
 	{
-		buf += 8; // skip header
-
 		restart_read_timeout();
 		int action = detail::read_int32(buf);
 		int transaction = detail::read_int32(buf);