[gnome-tweak-tool] Set the icon name of the window as "gnome-tweak-tool"

[John Stowers <jstowers src gnome org>]

commit 17f853a123ec943d76e7b25d84fb30e3654c729b
Author: Yosef Or Boczko <yoseforb gmail com>
Date:   Sun Jan 12 02:40:12 2014 +0200

    Set the icon name of the window as "gnome-tweak-tool"
    
    For the fallback app-menu in the headerbar.
    
    https://bugzilla.gnome.org/show_bug.cgi?id=722018

 gtweak/tweakview.py |    1 +
 1 files changed, 1 insertions(+), 0 deletions(-)
---
diff --git a/gtweak/tweakview.py b/gtweak/tweakview.py
index 10069b7..9a24285 100644
--- a/gtweak/tweakview.py
+++ b/gtweak/tweakview.py
@@ -33,6 +33,7 @@ class Window(Gtk.ApplicationWindow):
         
         self.set_size_request(950, 650)
         self.set_position(Gtk.WindowPosition.CENTER)
+        self.set_icon_name("gnome-tweak-tool")
         
         self.hsize_group = Gtk.SizeGroup(Gtk.SizeGroupMode.HORIZONTAL)