code: function renderLine(n, line) {
      // Convert tabs to spaces, so errors in code lines with tabs as indention symbol
      // could be correctly rendered, plus it will provide less verbose output
      line = line.replace(/\t/g, ' ');
  
      // "n + 1" to print lines in human way (counted from 1)
      var lineNumber = prependSpaces((n + 1).toString(), 5) + ' |';
      return ' ' + lineNumber + line;
  }
docs: Thanks to jscs for these functions :) 
  Renders single line of code in style error formatted output.
  
  @param {Number} n line number
  @param {String} line
  @returns {String}