[gnome-shell] tools: fix XDG desktop syntax in gnome-shell-overrides-migration

[Florian Müllner <fmuellner src gnome org>]

commit 1fca09037416659e452bd722574e1d5a248f522d
Author: Olivier Blin <dev blino org>
Date:   Fri Aug 3 00:35:24 2018 +0200

    tools: fix XDG desktop syntax in gnome-shell-overrides-migration
    
    Reported by desktop-file-validate:
    error: value "True" for boolean key "NoDisplay" in group "Desktop
    Entry" contains invalid characters, boolean values must be "false" or
    "true"

 data/gnome-shell-overrides-migration.desktop.in | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
---
diff --git a/data/gnome-shell-overrides-migration.desktop.in b/data/gnome-shell-overrides-migration.desktop.in
index 8ef86ac34..99452e6ec 100644
--- a/data/gnome-shell-overrides-migration.desktop.in
+++ b/data/gnome-shell-overrides-migration.desktop.in
@@ -1,5 +1,5 @@
 [Desktop Entry]
 Type=Application
 Name=GNOME settings overrides migration
-NoDisplay=True
+NoDisplay=true
 Exec=@libexecdir@/gnome-shell-overrides-migration.sh