[chrony/f17] use systemctl is-active instead of status in chrony-helper (#794771)

[Miroslav Lichvar]

commit adbad6f66926034036e3956374490a0dbf5c351b
Author: Miroslav Lichvar <mlichvar at redhat.com>
Date:   Fri Apr 6 14:08:00 2012 +0200

    use systemctl is-active instead of status in chrony-helper (#794771)

 chrony.helper |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/chrony.helper b/chrony.helper
index 4df55ed..af091fe 100644
--- a/chrony.helper
+++ b/chrony.helper
@@ -83,7 +83,7 @@ remove_dhclient_servers() {
 }
 
 is_running() {
-    systemctl status $service_name &> /dev/null
+    systemctl is-active -q $service_name
 }
 
 case "$1" in