MM-45991 Wrap errors (#20785)

web/webhook.go

@@ -110,7 +110,7 @@ func commandWebhook(c *Context, w http.ResponseWriter, r *http.Request) {
 
 	response, err := model.CommandResponseFromHTTPBody(r.Header.Get("Content-Type"), r.Body)
 	if err != nil {
-		c.Err = model.NewAppError("commandWebhook", "web.command_webhook.parse.app_error", nil, err.Error(), http.StatusBadRequest)
+		c.Err = model.NewAppError("commandWebhook", "web.command_webhook.parse.app_error", nil, "", http.StatusBadRequest).Wrap(err)
 		return
 	}