Don't backup for expired members.

fetch-backup-work

@@ -30,6 +30,7 @@ ssh uhumhummy ls -1 /lysator/lyswww/users/roxen_only \
 ssh stalhein.lysator.liu.se ypcat -k auto_home \
  | sort \
  | grep -v DELETE \
+ | grep -v membership_expired \
  | grep -v '^ *$' \
  | sed 's/:/ /' \
  | awk '$1 == "mailman" { next }