[gnome-chat] Revert an unnecessary string change

[Piotr Drąg <piotrdrag src gnome org>]

commit 17a6247d0c9a7cfbc714604b869466dee32803e1
Author: Piotr Drąg <piotrdrag gmail com>
Date:   Sat Sep 19 20:36:35 2015 +0200

    Revert an unnecessary string change

 data/gnome-chat.desktop.in.in |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/data/gnome-chat.desktop.in.in b/data/gnome-chat.desktop.in.in
index 7e0588d..9fd9384 100644
--- a/data/gnome-chat.desktop.in.in
+++ b/data/gnome-chat.desktop.in.in
@@ -8,4 +8,4 @@ Terminal=false
 Type=Application
 OnlyShowIn=GNOME;
 Categories=GNOME;GTK;Utility;Core;
-_Keywords=Chat;Talk;IM;Message;VoIP;GTalk;Facebook;Jabber;
+_Keywords=Chat;Talk;IM;Message;VOIP;GTalk;Facebook;Jabber;