base32/64: implement -w COL

function                                             old     new   delta
baseNUM_main                                         568     655     +87
packed_usage                                       33478   33533     +55
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(add/remove: 0/0 grow/shrink: 2/0 up/down: 142/0)             Total: 142 bytes

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
1 file changed