fix startup/shutdown order of nis and mxstartup

After 4ee8fed systems hang on shtudown until systemd times out.

Do not wait for NIS on shutdown.
Tell systemd to order nis and mxstartup in startup and shutdown

mxstartup-classic.service

@@ -1,6 +1,6 @@
 [Unit]
 Description=Mariux mxstartup classic
-After=mxstartup-mxvip.service mxmount.service
+After=mxstartup-mxvip.service mxmount.service nis.service
 Requires=mxstartup-mxvip.service mxmount.service
 
 [Service]

mxstartupctl

@@ -2,13 +2,13 @@
 
 remoteuser=molgen
 
-while ! id ${remoteuser} >/dev/null 2>&1 ; do
-    echo >&2 "WARNING: Waiting for NIS (failed to resolve remote user ${remoteuser})"
-    sleep 1
-done
 
 case "${1}" in
     start)
+        while ! id ${remoteuser} >/dev/null 2>&1 ; do
+            echo >&2 "WARNING: Waiting for NIS (failed to resolve remote user ${remoteuser})"
+            sleep 1
+        done
         mxvipctl     start $2
         mxservicectl start $2
         ;;