message: Changed the Utils.escapeXml method to accept numbers solving
diff: @@ -5,12 +5,12 @@ const vorpal: Vorpal = require('./vorpal-init');
  import { CommandError } from './Command';
  export default class Utils {
  - public static escapeXml(s: string | undefined) {
  + public static escapeXml(s: any | undefined) {
  if (!s) {
  return s;
  }
  - return s.replace(/[<>&"]/g, (c: string): string => {
  + return s.toString().replace(/[<>&"]/g, (c: string): string => {
  let char: string = c;
  switch (c) {
  