[gnome-settings-daemon] dummy: Do not hardcode path to false(1).

[Carlos Garnacho <carlosg src gnome org>]

commit 3c206a2a2ba2199e87ca3d2b302d848e106b1139
Author: Antoine Jacoutot <ajacoutot gnome org>
Date:   Wed Nov 11 15:02:47 2020 +0100

    dummy: Do not hardcode path to false(1).
    
    Some OS (e.g. BSD) install false as /usr/bin/false.

 plugins/org.gnome.SettingsDaemon.Dummy.desktop.in | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
---
diff --git a/plugins/org.gnome.SettingsDaemon.Dummy.desktop.in 
b/plugins/org.gnome.SettingsDaemon.Dummy.desktop.in
index 04249c84..f4cc7a27 100644
--- a/plugins/org.gnome.SettingsDaemon.Dummy.desktop.in
+++ b/plugins/org.gnome.SettingsDaemon.Dummy.desktop.in
@@ -1,7 +1,7 @@
 [Desktop Entry]
 Type=Application
 Name=GNOME Settings Daemon's @pluginname@ dummy autostart file
-Exec=/bin/false
+Exec=false
 OnlyShowIn=GNOME;
 NoDisplay=true
 Hidden=true