output-json-http: output status as an integer

HTTP status is an integer and it should be written as such in the
JSON events. This will allow to have improved matching in log
analysis tools.

src/output-json-http.c

@@ -327,7 +327,8 @@ void JsonHttpLogJSONExtended(json_t *js, htp_tx_t *tx)
     if (tx->response_status != NULL) {
         c = bstr_util_strdup_to_c(tx->response_status);
         if (c != NULL) {
-            json_object_set_new(js, "status", json_string(c));
+            unsigned int val = strtoul(c, NULL, 10);
+            json_object_set_new(js, "status", json_integer(val));
             SCFree(c);
         }