fsck.f2fs: support -p without argument

This patch allows fsck run -p without argument. So we could use -p as
-p, -p 0, -p 1. '-p' and '-p 0' have the same meaning as '-a'. '-p 1'
check more meta data than '-a'.

Reported-by: KARBOWSKI Piotr <piotr.karbowski@gmail.com>
Signed-off-by: Sheng Yong <shengyong1@huawei.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
1 file changed