[gnome-tweak-tool] Add Unity to OnlyShowIn value in .desktop file

[John Stowers <jstowers src gnome org>]

commit 0efe60139bbf9d1763601bb5ae5974d0834ee420
Author: Jeremy Bicha <jbicha ubuntu com>
Date:   Fri Jul 29 01:28:07 2011 -0400

    Add Unity to OnlyShowIn value in .desktop file
    
    https://bugzilla.gnome.org/show_bug.cgi?id=655548

 data/gnome-tweak-tool.desktop.in |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/data/gnome-tweak-tool.desktop.in b/data/gnome-tweak-tool.desktop.in
index d5a013d..b824472 100644
--- a/data/gnome-tweak-tool.desktop.in
+++ b/data/gnome-tweak-tool.desktop.in
@@ -7,4 +7,4 @@ Terminal=false
 Type=Application
 StartupNotify=true
 Categories=GNOME;GTK;Utility;
-OnlyShowIn=GNOME;
+OnlyShowIn=GNOME;Unity