(tweak) simplify regex#join
(tweak) simplify regex#join

highlightjs/highlight.js,highlightjs/highlight.js,highlightjs/highlight.js,carlokok/highlight.js,isagalaev/highlight.js,carlokok/highlight.js,carlokok/highlight.js,carlokok/highlight.js,isagalaev/highlight.js,highlightjs/highlight.js