[totem] Update POTFILES.in

[Piotr Drąg <piotrdrag src gnome org>]

commit 0689927c2c6e56ee2c8375129c22548c1786341f
Author: Piotr Drąg <piotrdrag gmail com>
Date:   Tue Jul 25 15:59:32 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 253c662..689df1f 100644
--- a/po/POTFILES.in
+++ b/po/POTFILES.in
@@ -18,6 +18,7 @@ src/gst/totem-time-helpers.c
 src/properties/bacon-video-widget-properties.c
 [type: gettext/glade]src/grilo.ui
 src/totem.c
+src/totem-gallery-thumbnailer.c
 src/totem-grilo.c
 src/totem-interface.c
 src/totem-main-toolbar.c