[zenity] Add more options to XGETTEXT_OPTIONS in po/Makevars

[Piotr Drąg <piotrdrag src gnome org>]

commit 312a0aec508a9b9a73dc3ff12355491eb67ddc35
Author: Piotr Drąg <piotrdrag gmail com>
Date:   Mon Sep 12 20:12:03 2016 +0200

    Add more options to XGETTEXT_OPTIONS in po/Makevars

 po/Makevars |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/po/Makevars b/po/Makevars
index 579ebd1..10357d6 100644
--- a/po/Makevars
+++ b/po/Makevars
@@ -8,7 +8,7 @@ subdir = po
 top_builddir = ..
 
 # These options get passed to xgettext.
-XGETTEXT_OPTIONS = --keyword=_ --keyword=N_
+XGETTEXT_OPTIONS = --from-code=UTF-8 --keyword=_ --keyword=N_ --keyword=C_:1c,2 --keyword=NC_:1c,2 
--keyword=g_dngettext:2,3 --add-comments
 
 # This is the copyright holder that gets inserted into the header of the
 # $(DOMAIN).pot file.  Set this to the copyright holder of the surrounding