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Subject: Option handling in grub-mkconfig
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Hi,

The processing of option `-o' in grub-mkconfig only works when
it is the first option.  The code is:

# Check the arguments.
for option in "$@"; do
     case "$option" in
[...]
     -o)
	shift
	grub_cfg=$1
	;;
     --output=*)
	grub_cfg=`echo "$option" | sed 's/--output=//'`
	;;


For instance:

grub-mkconfig -o /tmp/tata -o /tmp/titi
rm: invalid option -- 'o'
Try `rm --help' for more information.

grub-mkconfig --output=/tmp/tata -o /tmp/titi
rm: invalid option -- 'o'
Try `rm --help' for more information.


AFAICS, other scripts (grub-install, grub-mkrescue) only support the
long option (--output=FILE).

The simpler solution would be to get rid of `-o' in grub-mkconfig,
but this would break some user/distribution scripts (e.g. Debian's
update-grub).

What do you think?

Grégoire