add man version of the manpage.
add man version of the manpage.

det/libzip,cysp/libzip,projedi/libzip,JanX2/libzip-git,det/libzip,projedi/libzip,projedi/libzip,cysp/libzip,det/libzip,JanX2/libzip-git,det/libzip,cysp/libzip,cysp/libzip,projedi/libzip