setup command and boot partition.

[Jochen Hoenicke]

Hello folks,

The "setup" command does now almost support boot partition, but only
almost.  When installing an embedded stage1_5 it doesn't give the path
to the "REAL_CONFIG_FILE", and thus the default of
"/boot/grub/menu.lst" is never overwritten.  The following patch
should fix that.

I think this patch should be included in "grub-0.5.96.2" if you are
confident that it contains no new bug.

  Jochen

setup realconfig patch