[gnome-builder] Update POTFILES.in

[Piotr Drąg <piotrdrag src gnome org>]

commit 97bd2c8912fefd15a276579d6f13280491d3a185
Author: Piotr Drąg <piotrdrag gmail com>
Date:   Sun Mar 26 17:06:16 2017 +0200

    Update POTFILES.in

 po/POTFILES.in |    1 +
 1 files changed, 1 insertions(+), 0 deletions(-)
---
diff --git a/po/POTFILES.in b/po/POTFILES.in
index 87e33dd..b911211 100644
--- a/po/POTFILES.in
+++ b/po/POTFILES.in
@@ -177,6 +177,7 @@ plugins/project-tree/gb-rename-file-popover.ui
 plugins/project-tree/gtk/menus.ui
 plugins/python-pack/ide-python-format-provider.c
 plugins/quick-highlight/gbp-quick-highlight-preferences.c
+plugins/retab/gtk/menus.ui
 plugins/rustup/rustup_plugin/__init__.py
 plugins/support/gtk/menus.ui
 plugins/support/ide-support-application-addin.c