service: beautify debug log message a bit

diff --git a/src/core/service.c b/src/core/service.c
index 02899901f7b84107d211ff16741f836221d9b10f..a6f6a7383fd13378d5dd9d9596f74d35b1bc2680 100644 (file)
--- a/src/core/service.c
+++ b/src/core/service.c
@@ -3148,7 +3148,7 @@ static void service_notify_cgroup_empty_event(Unit *u) {
 
         assert(u);
 
-        log_unit_debug(u, "cgroup is empty");
+        log_unit_debug(u, "Control group is empty.");
 
         switch (s->state) {