Bug#1000830: /usr/bin/which: this version of `which' is deprecated; use `command -v' in scripts instead.

[積丹尼 Dan Jacobson]

# ed /var/lib/dpkg/info/grub-pc.postinst
# dpkg --configure grub-pc
dpkg: error processing package grub-pc (--configure):
 package grub-pc is already installed and configured
Errors were encountered while processing:
 grub-pc
# dpkg-reconfigure grub-pc #
# xterm
# killall dpkg-reconfigure