introduced a minor optimization that we can save one recv call when the read event is active *and* the read event is not ready.

Author: agentzh

src/ngx_http_lua_socket.c

@@ -1293,7 +1293,7 @@ ngx_http_lua_socket_read(ngx_http_request_t *r,
             }
         }
 
-#if 0
+#if 1
         if (rev->active && !rev->ready) {
             rc = NGX_AGAIN;
             break;