Implement generic restart systemd unit function

Change-Id: Ibd0ec4e7c3b9c395898673839ccf4de85616b201
Signed-off-by: Ratan Gupta <ratagupt@in.ibm.com>
diff --git a/util.cpp b/util.cpp
index 3c411cb..64a913c 100644
--- a/util.cpp
+++ b/util.cpp
@@ -1,4 +1,5 @@
 #include "util.hpp"
+
 #include "xyz/openbmc_project/Common/error.hpp"
 
 #include <phosphor-logging/log.hpp>