doc: Improve man pages * Add long options if not be written * Remove optional tags in OPTIONS section Signed-off-by: KATOH Yasufumi <karma@jazz.email.ne.jp> Acked-by: Stéphane Graber <stgraber@ubuntu.com>

doc: Add Korean man pages Signed-off-by: Sungbae Yoo <sungbae.yoo@samsung.com>