[PATCH] sched: correct output of show_state()

At present show_state prints a header the does not match the output of
show_task, as follows:

-
                                               sibling
  task             PC      pid father child younger older
init          S 00000000     0     1      0     2               (NOTLB)
-

This patch corrects the output of show_state so that the header is
aligned with the data, ala:

-
                         free                        sibling
  task             PC    stack   pid father child younger older
init          S 00000000     0     1      0     2               (NOTLB)
-

Signed-off-by: Chris Caputo <ccaputo@alt.net>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>