[gegl] Update POTFILES.in

[Piotr Drąg <piotrdrag src gnome org>]

commit bdd7d1c6a577bcb803124f22dad933ce078f2cc8
Author: Piotr Drąg <piotrdrag gmail com>
Date:   Wed Jan 16 18:52:59 2019 +0100

    Update POTFILES.in

 po/POTFILES.in | 1 +
 1 file changed, 1 insertion(+)
---
diff --git a/po/POTFILES.in b/po/POTFILES.in
index bc5ca40ca..888f128cb 100644
--- a/po/POTFILES.in
+++ b/po/POTFILES.in
@@ -2,6 +2,7 @@
 # Please keep this file sorted alphabetically.
 bin/gegl.c
 bin/gegl-options.c
+bin/ui.c
 gegl/buffer/gegl-buffer-enums.c
 gegl/gegl-enums.c
 gegl/gegl-init.c