TSG-16126 修复Proxy Events日志中存在c2s和s2c有字节数为0的问题

plugin/protocol/http2/src/http2_plugin.cpp

@@ -139,7 +139,6 @@ search_up_stream_data(const unsigned char * data, size_t len)
 	return 1;
 }
 
-
 static enum tfe_stream_action
 http2_stream_data(const struct tfe_stream * stream, unsigned int thread_id,
 	              enum tfe_conn_dir dir, const unsigned char * data, size_t len, void ** pme)

plugin/protocol/http2/src/http2_stream.cpp

@@ -1928,7 +1928,9 @@ static int http2_on_stream_close(nghttp2_session *session, const nghttp2_frame *
 
 	h2_session = TAILQ_LIST_FIND(h2_stream_info, stream_id);
     if (!h2_session)
-        return 0;
+    {
+		return 0;
+	}
 	if (error_code != 0){
 		const char *str = (dir == CONN_DIR_UPSTREAM) ? "Simulation s" : "Simulation c";
 		TFE_LOG_DEBUG(logger()->handle, "%s close, id = %d, error_code = %d", str,