[gnome-music/wip/jfelder/3-32-do-not-change-appdata-id] appdata: Keep the same app ID as in 3.30

[Jean Felder <jfelder src gnome org>]

commit 743a3a83deea299e4c61acd0ae2172a9cd69ce48
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.
    
    (cherry picked from commit dc1fa36ce1c911acd38170641d85a652cf12d1e4)

 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 3f02bd37..89a5bad4 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>