Convert punctuation marks in Japanese man pages

This only converts punctuation marks from FULLWIDTH COMMA/FULL STOP to
IDEOGRAPHIC COMMA/FULL STOP in Japanese man pages. The contents of man
pages do not change at all.

Signed-off-by: KATOH Yasufumi <karma@jazz.email.ne.jp>
Signed-off-by: Serge Hallyn <serge.hallyn@ubuntu.com>