[gegl] Update POTFILES.in

[Piotr Drąg <piotrdrag src gnome org>]

commit 160476bdd48eb9d8946cecc9b4906826fa1616ba
Author: Piotr Drąg <piotrdrag gmail com>
Date:   Sat Jan 16 12:47:58 2021 +0100

    Update POTFILES.in

 po/POTFILES.in | 1 +
 1 file changed, 1 insertion(+)
---
diff --git a/po/POTFILES.in b/po/POTFILES.in
index 5f375f695..26326268b 100644
--- a/po/POTFILES.in
+++ b/po/POTFILES.in
@@ -77,6 +77,7 @@ operations/common/mix.c
 operations/common/mono-mixer.c
 operations/common/motion-blur-linear.c
 operations/common/negative-darkroom.c
+operations/common/negative-darkroom/negative-darkroom-curve-enum.c
 operations/common/newsprint.c
 operations/common/noise-cell.c
 operations/common/noise-cie-lch.c