http_protocol_handler: fix HTTP/x.y parsing

It was accepting any character for the dot (yeah, massive big I know)

contrib/epee/include/net/http_protocol_handler.inl

@@ -353,7 +353,7 @@ namespace net_utils
   template<class t_connection_context>
 	bool simple_http_connection_handler<t_connection_context>::handle_invoke_query_line()
 	{ 
-		STATIC_REGEXP_EXPR_1(rexp_match_command_line, "^(((OPTIONS)|(GET)|(HEAD)|(POST)|(PUT)|(DELETE)|(TRACE)) (\\S+) HTTP/(\\d+).(\\d+))\r?\n", boost::regex::icase | boost::regex::normal);
+		STATIC_REGEXP_EXPR_1(rexp_match_command_line, "^(((OPTIONS)|(GET)|(HEAD)|(POST)|(PUT)|(DELETE)|(TRACE)) (\\S+) HTTP/(\\d+)\\.(\\d+))\r?\n", boost::regex::icase | boost::regex::normal);
 		//											    123         4     5      6      7     8        9        10          11     12    
 		//size_t match_len = 0;
 		boost::smatch result;