Fix cgroupv2 check logic

Author: nickygerritsen

judge/create_cgroups.in

@@ -34,6 +34,7 @@ You can try using cgroup V1 by adding systemd.unified_cgroup_hierarchy=0 to the
     if ! echo "+cpuset" >> /sys/fs/cgroup/cgroup.subtree_control; then
         cgroup_error_and_usage "Error: Cannot add +cpuset to cgroup.subtree_control; check kernel params. Unable to continue."
     fi
+    exit 0
 fi
 
 # Trying cgroup V1: