Nasty bug reported on bnc#867663

--- systemd-210/src/core/manager.c
+++ systemd-210/src/core/manager.c	2014-04-17 13:29:07.366236714 +0000
@@ -1780,7 +1780,8 @@ static int manager_dispatch_jobs_in_prog
         assert(m);
         assert(source);
 
-        manager_print_jobs_in_progress(m);
+        if (m->n_running_jobs > 0)
+                manager_print_jobs_in_progress(m);
 
         next = now(CLOCK_MONOTONIC) + JOBS_IN_PROGRESS_PERIOD_USEC;
         r = sd_event_source_set_time(source, next);