Bug#356863: savedefault seems broken

[Kurt J. Bosch]

It happend again right when trying to boot the first menu entry for the 
second time and each time after that.

Manual booting from grub command line worked without problems this time, 
but at command savedefault it sayed :
  Error 27: command not recognized

Booting an alternative entry with same kernel worked too. (There is no 
savedefault)

After I disabled
   echo savedefault --default=$menuentry |
   /usr/sbin/grub_bin --batch
in some extra script in /etc/acpi/suspend.d which I have allready there 
since dapper and doing
   sudo grub-install
grub worked normal again.

So, there seems to be broken/missing support of command savedefault in 
/usr/bin/grub and/or grub boot-loader itself.

Will see if that was allready all, or if it will happen again 
sporadically ...