CA-391859: Failed to stop varstord-guard

varstord-guard has following configuration in the service file

After=message-switch.service syslog.target

This means varstored-guard needs to be stopped before
message-switch, otherwise, it will hung and finally be killed by
systemd during xe-toolstack-restart

Move message-switch to the begining of the list to shutdown last
as all other daemons depend on it

Note: the list order is reversed by `for svc in $SERVICES`

Signed-off-by: Lin Liu <lin.liu@citrix.com>

scripts/xe-toolstack-restart

@@ -27,10 +27,10 @@ echo "Executing $FILENAME"
 
 POOLCONF=`cat @ETCXENDIR@/pool.conf`
 if [ $POOLCONF == "master" ]; then MPATHALERT="mpathalert"; else MPATHALERT=""; fi
-SERVICES="perfmon v6d xenopsd xenopsd-xc xenopsd-xenlight
+SERVICES="message-switch perfmon v6d xenopsd xenopsd-xc xenopsd-xenlight
   xenopsd-simulator xenopsd-libvirt xcp-rrdd-iostat xcp-rrdd-squeezed
   xcp-rrdd-xenpm xcp-rrdd-gpumon xcp-rrdd xcp-networkd squeezed forkexecd
-  $MPATHALERT xapi-storage-script xapi-clusterd varstored-guard message-switch"
+  $MPATHALERT xapi-storage-script xapi-clusterd varstored-guard"
 
 tmp_file=$(mktemp --suffix="xe-toolstack-restart")
 systemctl stop stunnel@xapi > $tmp_file 2>&1