[gnome-apps-nightly] Fix GNOME Tweak Tool

[Mathieu Bridon <mbridon src gnome org>]

commit a3ea1bc5e8a1ed7d8ec93baab0e2a082567cc9e2
Author: Mathieu Bridon <bochecha daitauha fr>
Date:   Thu Jul 27 14:31:09 2017 +0200

    Fix GNOME Tweak Tool
    
    In the previous commit, I introduced an error instead of fixing the
    build.
    
    This new commit reverts the previous one, and fixes the original error.

 org.gnome.TweakTool.json |    4 ++--
 1 files changed, 2 insertions(+), 2 deletions(-)
---
diff --git a/org.gnome.TweakTool.json b/org.gnome.TweakTool.json
index 8bdb032..a18b285 100644
--- a/org.gnome.TweakTool.json
+++ b/org.gnome.TweakTool.json
@@ -3,10 +3,10 @@
     "runtime": "org.gnome.Platform",
     "runtime-version": "master",
     "sdk": "org.gnome.Sdk",
-    "command": "gnome-tweak-tool",
+    "command": "gnome-tweaks",
     "tags": ["nightly"],
     "copy-icon": true,
-    "rename-icon": "gnome-tweaks",
+    "rename-icon": "gnome-tweak-tool",
     "rename-desktop-file": "gnome-tweak-tool.desktop",
     "desktop-file-name-prefix": "(Nightly) ",
     "finish-args": [