Currently we only print the default io scheduler if the kernel chooses,
not if the user/bootloader has specified one. This patch saves the extra
line in dmesg but always notified of the default choice by appending
(default) to that line:

	..
	io scheduler noop registered
	io scheduler anticipatory registered
	io scheduler deadline registered
	io scheduler cfq registered (default)
	..

Patch originally from Srihari Vijayaraghavan, modified by me.
Signed-off-by: Jens Axboe <axboe@suse.de>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>