[empathy] Add a missing tag to the AppData file

[Richard Hughes <rhughes src gnome org>]

commit a7ad339a807a2852841e5167f463cc4917ae6f6f
Author: Richard Hughes <richard hughsie com>
Date:   Mon Jan 25 15:37:33 2016 +0000

    Add a missing tag to the AppData file

 data/empathy.appdata.xml.in |    1 +
 1 files changed, 1 insertions(+), 0 deletions(-)
---
diff --git a/data/empathy.appdata.xml.in b/data/empathy.appdata.xml.in
index f23a15b..b6447f2 100644
--- a/data/empathy.appdata.xml.in
+++ b/data/empathy.appdata.xml.in
@@ -16,4 +16,5 @@
   </screenshots>
   <updatecontact>telepathy lists freedesktop org</updatecontact>
   <project_group>GNOME</project_group>
+  <translation type="gettext">empathy</translation>
 </application>