[dconf-editor] Set USE_MSGCTXT to yes in Makevars

[Piotr Drąg <piotrdrag src gnome org>]

commit 331d3654b04e6c0859222a1be1c30bf3846bc0f6
Author: Piotr Drąg <piotrdrag gmail com>
Date:   Sat Dec 31 18:59:15 2016 +0100

    Set USE_MSGCTXT to yes in Makevars
    
    There are strings using msgctxt in dconf-editor.

 po/Makevars |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/po/Makevars b/po/Makevars
index c1f0b0f..92f13e2 100644
--- a/po/Makevars
+++ b/po/Makevars
@@ -52,7 +52,7 @@ 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: