[iagno] Update POTFILES.in

[Piotr Drąg <piotrdrag src gnome org>]

commit 53be6565d0687932b5f59683be413672d24e5ba0
Author: Piotr Drąg <piotrdrag gmail com>
Date:   Sun Jan 26 14:23:41 2020 +0100

    Update POTFILES.in

 po/POTFILES.in | 1 +
 1 file changed, 1 insertion(+)
---
diff --git a/po/POTFILES.in b/po/POTFILES.in
index 78a0d3d..07c773b 100644
--- a/po/POTFILES.in
+++ b/po/POTFILES.in
@@ -5,6 +5,7 @@ data/org.gnome.Reversi.desktop.in
 data/ui/base-headerbar.ui
 data/ui/game-headerbar.ui
 data/ui/help-overlay.ui
+data/ui/history-button.ui
 data/ui/new-game-screen.ui
 data/themes/adwaita.theme.desktop.in
 data/themes/classic.theme.desktop.in