docs: function loadIgnoreFile(filepath) {
    var ignoredDeps = [];
  
    /**
       * Check if string is not empty
       * @param {string} line string to examine
       * @returns {boolean} True is its not empty
       * @private
       */
    function nonEmpty(line) {
      return line.trim() !== '' && line[0] !== '#';
    }
  
    if (filepath) {
      try {
        ignoredDeps = fs.readFileSync(filepath, 'utf8')
          .split(/\r?\n/)
          .filter(nonEmpty);
      } catch (e) {
        e.message = 'Cannot read ignore file: ' + filepath + '\nError: ' + e.message;
        throw e;
      }
    }
  
    return ignoredDeps;
  }