ccxt: npm run build (TypeError: Cannot read property '2' of null) Pandoc 1.19 vs 2.4+

I’m trying to build, I think I installed all the dependencies but I got stuck here

> ccxt@1.17.515 update-badges /Users/obsidianart/Documents/GitHub/ccxt
> node update-badges

Preparing for PyPI → ./python/README.rst (<anonymous> @ update-badges.js:12)
/Users/obsidianart/Documents/GitHub/ccxt/update-badges.js:24
let rstExchangeTableLines = match[2].split ("\n")
                                 ^

TypeError: Cannot read property '2' of null
    at Object.<anonymous> (/Users/obsidianart/Documents/GitHub/ccxt/update-badges.js:24:34)
    at Module._compile (internal/modules/cjs/loader.js:689:30)
    at Object.Module._extensions..js (internal/modules/cjs/loader.js:700:10)
    at Module.load (internal/modules/cjs/loader.js:599:32)
    at tryModuleLoad (internal/modules/cjs/loader.js:538:12)
    at Function.Module._load (internal/modules/cjs/loader.js:530:3)
    at Function.Module.runMain (internal/modules/cjs/loader.js:742:12)
    at startup (internal/bootstrap/node.js:266:19)
    at bootstrapNodeJSCore (internal/bootstrap/node.js:596:3)

Also, I’m unclear how you can test your code (except from automated test), I assume example works if you build every time, is there something else I’m missing?