[gtk] Update POTFILES.skip

[Piotr Drąg <piotrdrag src gnome org>]

commit 3c4259393c755262a64f75675f51abf49ccaf08d
Author: Piotr Drąg <piotrdrag gmail com>
Date:   Mon Sep 14 16:55:31 2020 +0200

    Update POTFILES.skip

 po-properties/POTFILES.skip | 1 +
 po/POTFILES.skip            | 1 +
 2 files changed, 2 insertions(+)
---
diff --git a/po-properties/POTFILES.skip b/po-properties/POTFILES.skip
index 5ec8a507ab..c0e2dbece5 100644
--- a/po-properties/POTFILES.skip
+++ b/po-properties/POTFILES.skip
@@ -14,6 +14,7 @@ demos/gtk-demo/demo.ui
 demos/gtk-demo/dialog.c
 demos/gtk-demo/entry_buffer.c
 demos/gtk-demo/entry_completion.c
+demos/gtk-demo/errorstates.ui
 demos/gtk-demo/event_axes.c
 demos/gtk-demo/expander.c
 demos/gtk-demo/filtermodel.ui
diff --git a/po/POTFILES.skip b/po/POTFILES.skip
index afd7395756..3e71cab3a9 100644
--- a/po/POTFILES.skip
+++ b/po/POTFILES.skip
@@ -14,6 +14,7 @@ demos/gtk-demo/demo.ui
 demos/gtk-demo/dialog.c
 demos/gtk-demo/entry_buffer.c
 demos/gtk-demo/entry_completion.c
+demos/gtk-demo/errorstates.ui
 demos/gtk-demo/event_axes.c
 demos/gtk-demo/expander.c
 demos/gtk-demo/filtermodel.ui