Install fail

[richburdon]

▶ npm install -g gitwalk
npm WARN deprecated [email protected]: 'github' has been renamed to '@octokit/rest' (https://git.io/vNB11)
npm WARN deprecated [email protected]: Please update to minimatch 3.0.2 or higher to avoid a RegExp DoS issue
npm WARN deprecated [email protected]: CoffeeScript on NPM has moved to "coffeescript" (no hyphen)
/usr/local/bin/gitwalk -> /usr/local/lib/node_modules/gitwalk/out/bin/gitwalk.js

> [email protected] install /usr/local/lib/node_modules/gitwalk/node_modules/nodegit
> node lifecycleScripts/install

/usr/local/lib/node_modules/gitwalk/node_modules/promisify-node/utils/args.js:9
  var args = func.toString().match(/function\s.*?\(([^)]*)\)/)[1];
                                                              ^

TypeError: Cannot read property '1' of null
    at module.exports (/usr/local/lib/node_modules/gitwalk/node_modules/promisify-node/utils/args.js:9:63)
    at /usr/local/lib/node_modules/gitwalk/node_modules/promisify-node/index.js:79:29
    at Array.filter (<anonymous>)
    at processExports (/usr/local/lib/node_modules/gitwalk/node_modules/promisify-node/index.js:60:6)
    at module.exports (/usr/local/lib/node_modules/gitwalk/node_modules/promisify-node/index.js:112:10)
    at Object.<anonymous> (/usr/local/lib/node_modules/gitwalk/node_modules/nodegit/generate/scripts/generateNativeCode.js:3:13)
    at Module._compile (internal/modules/cjs/loader.js:1133:30)
    at Object.Module._extensions..js (internal/modules/cjs/loader.js:1153:10)
    at Module.load (internal/modules/cjs/loader.js:977:32)
    at Function.Module._load (internal/modules/cjs/loader.js:877:14)