File ddclient-delay-main-process-for-systemd.patch of Package ddclient

--- ddclient-4.0.0/ddclient.in	2025-01-19 20:31:09.000000000 +0100
+++ ddclient-4.0.0-new/ddclient.in	2025-03-07 17:20:48.303727503 +0100
@@ -1473,6 +1473,7 @@ sub main {
         if ($pid < 0) {
             fatal("failed to fork: %s", $!);
         } elsif ($pid) {
+            sleep(1);
             exit 0;
         }
         $SIG{'CHLD'} = 'DEFAULT';