[gnome-calculator] Add rename-icon directive to flatpak manifest

[Robert Roth <robertroth src gnome org>]

commit f7b52fbe5783163a1ee7f46e797d7f861a427272
Author: Robert Roth <robert roth off gmail com>
Date:   Mon Jan 29 13:57:18 2018 +0200

    Add rename-icon directive to flatpak manifest

 org.gnome.Calculator.json |    1 +
 1 files changed, 1 insertions(+), 0 deletions(-)
---
diff --git a/org.gnome.Calculator.json b/org.gnome.Calculator.json
index f5e9e8a..9230307 100644
--- a/org.gnome.Calculator.json
+++ b/org.gnome.Calculator.json
@@ -4,6 +4,7 @@
     "runtime-version": "master",
     "sdk": "org.gnome.Sdk",
     "command": "gnome-calculator",
+    "rename-icon": "gnome-calculator",
     "tags": ["nightly"],
     "desktop-file-name-prefix": "(Nightly) ",
     "finish-args": [