[gimp] Update POTFILES.in

[Piotr Drąg <piotrdrag src gnome org>]

commit 09035bc3f5c2bd3721bb58a25ad17ca7c19693a5
Author: Piotr Drąg <piotrdrag gmail com>
Date:   Sat Dec 23 00:09:33 2017 +0100

    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 7cf3521..81c4bc8 100644
--- a/po/POTFILES.in
+++ b/po/POTFILES.in
@@ -255,6 +255,7 @@ app/display/gimpdisplayshell-layer-select.c
 app/display/gimpdisplayshell-rotate-dialog.c
 app/display/gimpdisplayshell-scale-dialog.c
 app/display/gimpdisplayshell-title.c
+app/display/gimpdisplayshell-utils.c
 app/display/gimpnavigationeditor.c
 app/display/gimpstatusbar.c
 app/display/gimptoolcompass.c