* Single package check works
  cd /usr/pkgsrc/category/package; check-update

* category mode works for now
  mkdir /tmp/check-update
  check-update -c mail -d /tmp/check-update
      or if you have non-standard pkgsrc directory,
  check-update -c mail -d /tmp/check-update -p /PATH/TO/pkgsrc

* crontab driven bulk-check is imcompete now, not git pull on non-git dir
  sh /var/check-update/cd-and-sh

* on 2017-03-29
    3  cd /export/CHROOT/usr/pkgsrc/wip/check-update/
    7  git pull
    8  make clean
   12  make package-install
   13  sudo pkg_delete check-update
   14  make package-install
----------------------
CF-S9@makoto 21:23:15/170329(..wip/check-update)% (cd /var/check-update/; make)
(if ! [ -d /var/check-update/htdocs/.20170329-12 ]; then mkdir /var/check-update/htdocs/.20170329-12 ; fi)
mkdir: /var/check-update/htdocs/.20170329-12: No such file or directory
*** Error code 1
----------------------


* on 2017-03-30 ( my case, using non-standard path /export/CHROOT/usr/pkgsrc)
   ----------------------
   sudo pkg_delete -f check-update && make clean && \
   make package-install && \
   ( cd /var/check-update; env PKGSRC=/export/CHROOT/usr/pkgsrc make)
   ----------------------
