added -c option and  $1 argument .

usage: update-canna-yubin [-c canna_yubin_dir] [canna_system_dic_dir]

canna_yubin_dir: default /usr/share/canna-yubin-0.0.20011101/
canna_system_dic_dir: default /var/lib/canna/dic/canna/

	modified:   update-canna-yubin