/bin/sh ./mkinstalldirs /usr/pkgsrc/pkgtools/digest/work/.destdir/usr/pkg_bulk/man/man1
mkdir /usr/pkgsrc/pkgtools/digest/work/.destdir/usr/pkg_bulk/man
mkdir /usr/pkgsrc/pkgtools/digest/work/.destdir/usr/pkg_bulk/man/man1

/usr/bin/install -c -o root -g wheel -m 644 digest.1
  /usr/pkgsrc/pkgtools/digest/work/.destdir/usr/pkg_bulk/man/man1/digest.1
=> Automatic manual page handling
pkg_create: can't stat
  `/usr/pkgsrc/pkgtools/digest/work/.destdir/usr/pkg_bulk/diff:
   config.h: No such file or directory'

=> Creating binary package /usr/pkgsrc/pkgtools/digest/work/.packages/digest-20121220.tgz
pkg_create: can't stat
`/usr/pkgsrc/pkgtools/digest/work/.destdir/usr/pkg_bulk/diff:
config.h: No such file or directory'
pkg_create: lstat failed for file diff: config.h: No such file
or directory: No such file or directory

*** Error code 2

Stop.
bmake: stopped in /usr/pkgsrc/pkgtools/digest
*** Error code 1

Stop.
bmake: stopped in /usr/pkgsrc/pkgtools/digest
*** Error code 1

Stop.
bmake: stopped in /usr/pkgsrc/net/rsync
*** Error code 1

Stop.
bmake: stopped in /usr/pkgsrc/pkgtools/pbulk

export LANG=C かな。
/dev/null が単なるファイルだった所為らしい。