/etc/cron.d/pveupdate: always write file in postinstall

so that we can change times in future

bin/Makefile

 include ../defines.mk
 
-SUBDIRS = init.d cron ocf test
+SUBDIRS = init.d ocf test
 
 SERVICES = pvestatd pveproxy
 CLITOOLS = vzdump pvesubscription

debian/postinst

@@ -50,13 +50,13 @@ case "$1" in
     fi
 
     # create new daily randomize update cronjob if not exist
-    if !(test -e /etc/cron.d/pveupdate); then
-	MIN="$(shuf -i 0-59 -n 1)"
-
-	HOUR="$(shuf -i 6-10 -n 1)"
-	echo "Create cron job for daily update"
-	printf " ${MIN} ${HOUR} * * * root /usr/bin/pveupdate\n\n" > /etc/cron.d/pveupdate
-    fi
+    MIN="$(shuf -i 0-59 -n 1)"
+    HOUR="$(shuf -i 6-10 -n 1)"
+    echo "Create cron job for daily update"
+    cat <<EOF >/etc/cron.d/pveupdate
+# automatically generated - do not edit
+${MIN} ${HOUR} * * * root /usr/bin/pveupdate
+EOF
 
     if test ! -e /var/lib/pve-manager/apl-info/download.proxmox.com; then
 	mkdir -p /var/lib/pve-manager/apl-info