[gnome-chess] Set USE_MSGCTXT = yes in Makevars

[Piotr Drąg <piotrdrag src gnome org>]

commit f3cdc63600aae53c109c9caba8b5573687fb4e1c
Author: Piotr Drąg <piotrdrag gmail com>
Date:   Thu Jul 28 19:14:50 2016 +0200

    Set USE_MSGCTXT = yes in Makevars
    
    gnome-chess uses msgctxt.

 po/Makevars |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/po/Makevars b/po/Makevars
index df09a7b..71bd503 100644
--- a/po/Makevars
+++ b/po/Makevars
@@ -51,7 +51,7 @@ EXTRA_LOCALE_CATEGORIES =
 # context.  Possible values are "yes" and "no".  Set this to yes if the
 # package uses functions taking also a message context, like pgettext(), or
 # if in $(XGETTEXT_OPTIONS) you define keywords with a context argument.
-USE_MSGCTXT = no
+USE_MSGCTXT = yes
 
 # These options get passed to msgmerge.
 # Useful options are in particular: