sched: Correct printk whitespace in warning from cpu down task check

Due to an incorrect line break the output currently contains tabs.
Also remove trailing space.

The actual output that logcheck sent me looked like this:
 Task events/1 (pid = 10) is on cpu 1^I^I^I^I(state = 1, flags = 84208040)

After this patch it becomes:
 Task events/1 (pid = 10) is on cpu 1 (state = 1, flags = 84208040)

Signed-off-by: Frans Pop <elendilplanet.nl>
Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
LKML-Reference: <201001251456.34996.elendil@planet.nl>
Signed-off-by: Ingo Molnar <mingo@elte.hu>