Extends does not work for Syntastic Pug Linter unless you have the packages installed globally

[titanism]

In the code for lib/utils.js the linter right now uses resolve (the package) to resolve the package.

  _resolveExtendsFile: function (filePath) {
    if (isAbsolutePath(filePath) || !/\w|@/.test(filePath.charAt(0))) {
      filePath = path.resolve(this._basePath, filePath);

      if (!fs.existsSync(filePath)) {
        throw new Error('Cannot find configuration file "' + filePath + '" to extend');
      }
    } else {
      var packageName = utils.normalizePackageName(filePath, 'pug-lint-config');
      try {
        filePath = resolve.sync(packageName);
      } catch (err) {
        throw new Error('Cannot find module "' + packageName + '" to extend');
      }
    }

    return filePath;
  }

Because it is using resolve.sync it will not find the locally installed package in the project.