//usage: "\n -d Decode data"
////usage: "\n -w COL Wrap lines at COL (default 76, 0 disables)"
////usage: "\n -i When decoding, ignore non-alphabet characters"
//usage: "\n -d Decode data"
////usage: "\n -w COL Wrap lines at COL (default 76, 0 disables)"
////usage: "\n -i When decoding, ignore non-alphabet characters"