Always kill temporary atom clients
Always kill temporary atom clients

Otherwise resources in X server are not always cleaned up.
This can lead to client connection exhaustion on server side.

Reported by and resolved with stharward on github.

Signed-off-by: Tobias Stoeckmann <059b8b880f8441509ec8a65b50b4c6ae74ebea76@stoeckmann.org>

stoeckmann/xwallpaper,stoeckmann/xwallpaper