Merge pull request #5282 from nazco/patch-1

restart grafana after upgrade

packaging/deb/control/postinst

@@ -7,12 +7,12 @@ set -e
 startGrafana() {
   if [ -x /bin/systemctl ]; then
     /bin/systemctl daemon-reload
-    /bin/systemctl start grafana-server
+    /bin/systemctl restart grafana-server
 	elif [ -x "/etc/init.d/grafana-server" ]; then
 		if [ -x "`which invoke-rc.d 2>/dev/null`" ]; then
-			invoke-rc.d grafana-server start || true
+			invoke-rc.d grafana-server restart || true
 		else
-			/etc/init.d/grafana-server start || true
+			/etc/init.d/grafana-server restart || true
 		fi
 	fi
 }