Fix calc_bruteforce_cardinality
Fix calc_bruteforce_cardinality

The function was overestimating the cardinality
for upper-case characters and digits by mistakenly
identifying them as symbols. Thus a simple repeat
sequence like "AAAAAA" would have cardinality
26+33=59 rather than 26.

dockbiz/zxcvbn,alextekartik/zxcvbn,signalnine/zxcvbn,monsterwater/zxcvbn,monsterwater/zxcvbn,TheeGrassHopper/zxcvbn,shotishu/zxcvbn,hnq90/zxcvbn,valeriansaliou/zxcvbn,varenc/zxcvbn,valeriansaliou/zxcvbn,dropbox/zxcvbn,alextekartik/zxcvbn,dockbiz/zxcvbn,TheeGrassHopper/zxcvbn,fo0nikens/zxcvbn,hn3000/zxcvbn,alextekartik/zxcvbn,monsterwater/zxcvbn,hnq90/zxcvbn,signalnine/zxcvbn,TheeGrassHopper/zxcvbn,shotishu/zxcvbn,varenc/zxcvbn,signalnine/zxcvbn,hnq90/zxcvbn,paulballesty/zxcvbn,valeriansaliou/zxcvbn,shotishu/zxcvbn,fo0nikens/zxcvbn,valeriansaliou/zxcvbn,fo0nikens/zxcvbn,varenc/zxcvbn,dockbiz/zxcvbn,TheeGrassHopper/zxcvbn,monsterwater/zxcvbn