[gnome-music/wip/kalev/appdata-id] appdata: Keep the same app ID as in 3.30

[Kalev Lember <klember src gnome org>]

commit 9551239acc053d6d12a408de8880686364ab5c59
Author: Kalev Lember <klember redhat com>
Date:   Thu Apr 11 19:45:57 2019 +0200

    appdata: Keep the same app ID as in 3.30
    
    Go back to using "org.gnome.Music.desktop" as it was in 3.30. The
    appdata spec is very clear that the app ID is not supposed to change and
    should be a unique identifier for the app across distributions.

 data/org.gnome.Music.appdata.xml.in.in | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
---
diff --git a/data/org.gnome.Music.appdata.xml.in.in b/data/org.gnome.Music.appdata.xml.in.in
index 2cd3de26..3a09f8d8 100644
--- a/data/org.gnome.Music.appdata.xml.in.in
+++ b/data/org.gnome.Music.appdata.xml.in.in
@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <component type="desktop-application">
-  <id>@appid@</id>
+  <id>@appid@.desktop</id>
   <metadata_license>CC0-1.0</metadata_license>
   <project_license>GPL-2.0+ and LGPL-2.0+ and CC-BY-SA-4.0</project_license>
   <name>GNOME Music</name>