[PATCH] oom: more printk

Print the name of the task invoking the OOM killer.  Could make debugging
easier.

Signed-off-by: Nick Piggin <npiggin@suse.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>