[gegl] unpremultiply: include glib/gi18n-lib.h for _

[Øyvind Kolås <ok src gnome org>]

commit d8470ca4ea14ab4d7805a991a8f921c7b4fe9981
Author: Øyvind Kolås <pippin gimp org>
Date:   Thu Mar 30 02:27:56 2017 +0200

    unpremultiply: include glib/gi18n-lib.h for _

 operations/common/unpremultiply.c |    1 +
 1 files changed, 1 insertions(+), 0 deletions(-)
---
diff --git a/operations/common/unpremultiply.c b/operations/common/unpremultiply.c
index 0fd1078..050fedf 100644
--- a/operations/common/unpremultiply.c
+++ b/operations/common/unpremultiply.c
@@ -17,6 +17,7 @@
  */
 
 #include "config.h"
+#include <glib/gi18n-lib.h>
 
 #ifdef GEGL_PROPERTIES