It is not elegant that prompt shell does not start from new line after
executing "cat /proc/$pid/wchan".  Make prompt shell start from new
line.
Signed-off-by: NMinfei Huang <mnfhuang@gmail.com>
Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>