[polari] telepathyClient: Clarify title of msg notification

[Gitlab System User <gitlab src gnome org>]

commit 1aaf1eee0ec8ca522905d1f150607ad8a4d9a9ed
Author: Daniel Boles <dboles src gnome org>
Date:   Fri Aug 25 12:36:16 2017 +0100

    telepathyClient: Clarify title of msg notification
    
    If Dennis messaged you from #room, the title was:
    
        room Dennis
    
    It seems clearer and more grammatical to say
    
        Dennis in room
    
    https://bugzilla.gnome.org/show_bug.cgi?id=786709

 src/telepathyClient.js | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)
---
diff --git a/src/telepathyClient.js b/src/telepathyClient.js
index ccf20d9..0b11e9a 100644
--- a/src/telepathyClient.js
+++ b/src/telepathyClient.js
@@ -598,7 +598,9 @@ var TelepathyClient = new Lang.Class({
         if (!room.should_highlight_message(nick, text))
             return;
 
-        let summary = '%s %s'.format(room.display_name, nick);
+        /* Translators: This is the title of the notification announcing a newly
+          received message, in the form "user-nickname in room-display-name" */
+        let summary = _('%s in %s').format(nick, room.display_name);
         let notification = this._createNotification(room, summary, text);
         this._app.send_notification(this._getPendingNotificationID(room, id), notification);
     },