change of 2010-01-09, "Make loader output a bit more user-friendly".
* loader/i386/efi/linux.c (grub_linux_boot): Move debug info to
grub_dprintf().
(grub_cmd_linux): Likewise.
(grub_cmd_initrd): Likewise.
* loader/i386/ieee1275/linux.c (grub_cmd_linux): Likewise.
* loader/i386/pc/linux.c (grub_cmd_linux): Likewise.