fence renderer: fix concat of class array
@ -66,7 +66,7 @@ default_rules.fence = function (tokens, idx, options, env, slf) {
if (i < 0) {
tmpAttrs.push([ 'class', options.langPrefix + langName ]);
} else {
tmpAttrs[i] += ' ' + options.langPrefix + langName;
tmpAttrs[i][1] += ' ' + options.langPrefix + langName;
}
// Fake token just to render attributes