[gnome-contacts] dist: fix with automake-1.15

[Erick Pérez Castellanos <erickpc src gnome org>]

commit f854f35e0f05befef5b52daf429432d8dda6143e
Author: Erick Pérez Castellanos <erick red gmail com>
Date:   Thu Apr 16 00:10:27 2015 -0400

    dist: fix with automake-1.15

 po/POTFILES.skip |    1 +
 1 files changed, 1 insertions(+), 0 deletions(-)
---
diff --git a/po/POTFILES.skip b/po/POTFILES.skip
index 6bfba5d..5cd900e 100644
--- a/po/POTFILES.skip
+++ b/po/POTFILES.skip
@@ -1,5 +1,6 @@
 data/org.gnome.Contacts.appdata.xml
 data/org.gnome.Contacts.desktop.in
+sub/data/org.gnome.Contacts.desktop.in
 data/org.gnome.Contacts.search-provider.ini.in
 src/contacts-accounts-list.c
 src/contacts-address-map.c