The message below sums up the problem:

  Date: Sun, 10 Jun 2001 04:06:39 -0400
  From: root.ma.us (Cron Daemon)
  To: root.ma.us
  Subject: Cron <root@jik> run-parts /etc/cron.daily

  /etc/cron.daily/tmpwatch:

  error: lstat() of directory /var/cache/man/X11R6/cat? failed: No such
file or directory

I'm using tmpwatch-2.7.2-1.  Something like this might be in order, instead
of what's at the end of /etc/cron.daily/tmpwatch now:

  for d in /var/{cache/man,catman}/{X11R6/cat?,cat?,local/cat?}; do
      [ -d $d ] && /usr/sbin/tmpwatch -f $d
  done