Correct meaning of the last sensence by swapping it with previous.
Fix two small typos.
Signed-off-by: NAnton Leontiev <scileont@gmail.com>
Signed-off-by: NHans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: NMauro Carvalho Chehab <mchehab@s-opensource.com>