Command line inconsistency

[Pavel Roskin]

Hello!

I needed to use gdb to find out that /sbin/grub requires decimal numbers
after --boot-drive and hexadecimal numbers after --install-partition :

grub --boot-drive=128 --install-partition=4ffff

This is highly inconsistent.

Let's use hexadecimal numbers for --boot-drive too. "grub --help"
should then clearly state that the numbers are expected to be in the
hexadecimal format.

Pavel Roskin